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RFC 943 - Assigned numbers

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Network Working Group                                        J. Reynolds
Request for Comments:  943                                     J. Postel
Obsoletes RFCs:  923, 900, 870,                               April 1985
820, 790, 776, 770, 762, 758,
755, 750, 739, 604, 503, 433, 349
Obsoletes IENs:  127, 117, 93

                            ASSIGNED NUMBERS

Status of this Memo

   This memo is an official status report on the numbers used in
   protocols in the ARPA-Internet community.  Distribution of this memo
   is unlimited.


   This Network Working Group Request for Comments documents the
   currently assigned values from several series of numbers used in
   network protocol implementations.  This RFC will be updated
   periodically, and in any case current information can be obtained
   from Joyce Reynolds.  The assignment of numbers is also handled by
   Joyce.  If you are developing a protocol or application that will
   require the use of a link, socket, port, protocol, network number,
   etc., please contact Joyce to receive a number assignment.

      Joyce Reynolds
      USC - Information Sciences Institute
      4676 Admiralty Way
      Marina del Rey, California  90292-6695

      Phone: (213) 822-1511


   Most of the protocols mentioned here are documented in the RFC series
   of notes.  The more prominent and more generally used are documented
   in the "Internet Protocol Transition Workbook" [35] or in the old
   "ARPANET Protocol Handbook" [36] prepared by the NIC.  Some of the
   items listed are undocumented.  Further information on protocols can
   be found in the memo "Official ARPA-Internet Protocols" [92].

   In all cases the name and mailbox of the responsible individual is
   indicated.  In the lists that follow, a bracketed entry, e.g.,
   [nn,iii], at the right hand margin of the page indicates a reference
   for the listed protocol, where the number ("nn") cites the document
   and the letters ("iii") cites the person.  Whenever possible, letters
   are a NIC Ident as used in the WHOIS service.

Assigned Numbers                                                 RFC 943
Network Numbers

                        ASSIGNED NETWORK NUMBERS

   The network numbers listed here are used as internet addresses by the
   Internet Protocol (IP) [35,80].  The IP uses a 32-bit address field
   and divides that address into a network part and a "rest" or local
   address part.  The division takes 3 forms or classes.

      The first type of address, or class A, has a 7-bit network number
      and a 24-bit local address.  The highest-order bit is set to 0.
      This allows 128 class A networks.

                           1                   2                   3   
       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 
      |0|   NETWORK   |                Local Address                  |

                             Class A Address

      The second type of address, class B, has a 14-bit network number
      and a 16-bit local address.  The two highest-order bits are set to
      1-0.  This allows 16,384 class B networks.

                           1                   2                   3   
       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 
      |1 0|           NETWORK         |          Local Address        |

                             Class B Address

      The third type of address, class C, has a 21-bit network number
      and a 8-bit local address.  The three highest-order bits are set
      to 1-1-0.  This allows 2,097,152 class C networks.

                           1                   2                   3   
       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 
      |1 1 0|                    NETWORK              | Local Address |

                             Class C Address

      Note:  No addresses are allowed with the three highest-order bits
      set to 1-1-1.  These addresses (sometimes called "class D") are

Assigned Numbers                                                 RFC 943
Network Numbers

   One commonly used notation for internet host addresses divides the
   32-bit address into four 8-bit fields and specifies the value of each
   field as a decimal number with the fields separated by periods.  This
   is called the "dotted decimal" notation.  For example, the internet
   address of USC-ISIF.ARPA in dotted decimal is, or

   The dotted decimal notation will be used in the listing of assigned
   network numbers.  The class A networks will have nnn.rrr.rrr.rrr, the
   class B networks will have nnn.nnn.rrr.rrr, and the class C networks
   will have nnn.nnn.nnn.rrr, where nnn represents part or all of a
   network number and rrr represents part or all of a local address.

   There are four catagories of users of Internet Addresses: Research,
   Defense, Government (Non-Defense), and Commercial.  To reflect the
   allocation of network identifiers among the categories, a
   one-character code is placed to the left of the network number: R for
   Research, D for Defense, G for Government, and C for Commercial (see
   Appendix A for further details on this division of the network

   Network numbers are assigned for networks that are connected to the
   ARPA-Internet and DDN-Internet, and for independent networks that use
   the IP family protocols (these are usually commercial).  These
   independent networks are marked with an asterisk preceding the

   The administrators of independent networks must apply separately for
   permission to interconnect their network with either the
   ARPA-Internet of the DDN-Internet.  Independent networks need not be
   listed in the working tables of either the ARPA-Internet or
   DDN-Internet hosts or gateways.

   For various reasons, the assigned numbers of networks are sometimes
   changed.  To ease the transition the old number will be listed for a
   transition period as well.  These "old number" entries will be marked
   with a "T" following the number and preceding the name, and the
   network name will be suffixed "-TEMP".

   Special Addresses:

      In certain contexts, it is useful to have fixed addresses with
      functional significance rather than as identifiers of specific
      hosts.  When such usage is called for, the address zero is to be
      interpreted as meaning "this", as in "this network".  The address
      of all ones are to be interpreted as meaning "all", as in "all
      hosts".  For example, the address could be

Assigned Numbers                                                 RFC 943
Network Numbers

      interpreted as meaning all hosts on the network 128.9.  Or, the
      address could be interpreted as meaning host 37 on this

   Assigned Network Numbers

   Class A Networks

      * Internet Address  Name          Network               References
      - ----------------  ----          -------               ----------
        000.rrr.rrr.rrr                 Reserved                   [JBP]
      R 004.rrr.rrr.rrr   SATNET        Atlantic Satellite Network[DM11]
      D 006.rrr.rrr.rrr T YPG-NET-TEMP  Yuma Proving Grounds     [8,BXA]
      D 007.rrr.rrr.rrr T EDN-TEMP      DCEC EDN                   [EC5]
      R 008.rrr.rrr.rrr T BBN-NET-TEMP  BBN Network               [JSG5]
      R 010.rrr.rrr.rrr   ARPANET       ARPANET              [8,36,REK2]
      D 011.rrr.rrr.rrr   DODIIS        DoD INTEL INFO SYS         [AY7]
      C 012.rrr.rrr.rrr   ATT           ATT, Bell Labs            [MH12]
      C 014.rrr.rrr.rrr   PDN           Public Data Network       [REK4]
      R 018.rrr.rrr.rrr T MIT-TEMP      MIT Network         [17,91,DDC2]
      D 021.rrr.rrr.rrr   DDN-RVN       DDN-RVN                    [MLC]
      D 022.rrr.rrr.rrr   DISNET        DISNET                    [FLM2]
      D 023.rrr.rrr.rrr   DDN-TC-NET    DDN-TestCell-Network      [DH17]
      D 024.rrr.rrr.rrr   MINET         MINET                    [8,DHH]
      R 025.rrr.rrr.rrr   RSRE-EXP-NET  RSRE                      [RNM1]
      D 026.rrr.rrr.rrr   MILNET        MILNET                    [FLM2]
      R 027.rrr.rrr.rrr T NOSC-LCCN-TEMPNOSC / LCCN                [RH6]
      R 028.rrr.rrr.rrr   WIDEBAND      Wide Band Satellite Net   [CJW2]
      D 029.rrr.rrr.rrr T MILX25-TEMP   MILNET X.25 Temp           [MLC]
      D 030.rrr.rrr.rrr T ARPAX25-TEMP  ARPA X.25 Temp             [MLC]
      R 032.rrr.rrr.rrr   UCL-TAC       UCL TAC                     [PK]
      R 036.rrr.rrr.rrr T SU-NET-TEMP   Stanford University Network[JCM]
      R 039.rrr.rrr.rrr T SRINET-TEMP   SRI Local Network         [GEOF]
      R 041.rrr.rrr.rrr   BBN-TEST-A    BBN-GATE-TEST-A            [RH6]
      R 044.rrr.rrr.rrr   AMPRNET       Amateur Radio Experiment Net[HM]
        001.rrr.rrr.rrr-003.rrr.rrr.rrr Unassigned                 [JBP]
        005.rrr.rrr.rrr                 Unassigned                 [JBP]
        009.rrr.rrr.rrr                 Unassigned                 [JBP]
        013.rrr.rrr.rrr                 Unassigned                 [JBP]
        015.rrr.rrr.rrr-017.rrr.rrr.rrr Unassigned                 [JBP]
        019.rrr.rrr.rrr-020.rrr.rrr.rrr Unassigned                 [JBP]
        031.rrr.rrr.rrr                 Unassigned                 [JBP]
        033.rrr.rrr.rrr-035.rrr.rrr.rrr Unassigned                 [JBP]
        037.rrr.rrr.rrr-038.rrr.rrr.rrr Unassigned                 [JBP]
        040.rrr.rrr.rrr                 Unassigned                 [JBP]
        042.rrr.rrr.rrr-043.rrr.rrr.rrr Unassigned                 [JBP]
        045.rrr.rrr.rrr-126.rrr.rrr.rrr Unassigned                 [JBP]
        127.rrr.rrr.rrr                 Reserved                   [JBP]

Assigned Numbers                                                 RFC 943
Network Numbers

   Class B Networks

      * Internet Address  Name          Network               References
      - ----------------  ----          -------               ----------
        128.000.rrr.rrr                 Reserved                   [JBP]
      R 128.001.rrr.rrr   BBN-TEST-B    BBN-GATE-TEST-B            [RH6]
      R 128.002.rrr.rrr   CMU-NET       CMU-Ethernet              [HDW2]
      R 128.003.rrr.rrr   LBL-CSAM      LBL-CSAM-RESEARCH         [JS38]
      R 128.004.rrr.rrr   DCNET         LINKABIT DCNET         [62,DLM1]
      R 128.005.rrr.rrr   FORDNET       FORD DCNET             [62,DLM1]
      R 128.006.rrr.rrr   RUTGERS       RUTGERS                   [CLH3]
      R 128.007.rrr.rrr   DFVLR         DFVLR DCNET Network       [HDC1]
      R 128.008.rrr.rrr   UMDNET        Univ of Maryland DCNET [62,DLM1]
      R 128.009.rrr.rrr   ISI-NET       USC-ISI Local Network      [CMR]
      R 128.010.rrr.rrr   PURDUE-CS-NET Purdue Computer Science    [CAK]
      R 128.011.rrr.rrr   BBN-CRONUS    BBN DOS Project         [57,WIM]
      R 128.012.rrr.rrr   SU-NET        Stanford University Net    [JCM]
      D 128.013.rrr.rrr   MATNET        Mobile Access Terminal Net[DM11]
      R 128.014.rrr.rrr   BBN-SAT-TEST  BBN SATNET Test Net       [DM11]
      R 128.015.rrr.rrr   S1NET         LLL-S1-NET                [EAK1]
      R 128.016.rrr.rrr   UCLNET        University College London   [PK]
      D 128.017.rrr.rrr   MATNET-ALT    Mobile Access Terminal Alt[DM11]
      R 128.018.rrr.rrr   SRINET        SRI Local Network         [GEOF]
      D 128.019.rrr.rrr   EDN           DCEC EDN                   [EC5]
      D 128.020.rrr.rrr   BRLNET        BRLNET                  [8,MJM2]
      R 128.021.rrr.rrr   SF-PR-1       SF-1 Packet Radio Network  [JEM]
      R 128.022.rrr.rrr   SF-PR-2       SF-2 Packet Radio Network  [JEM]
      R 128.023.rrr.rrr   BBN-PR        BBN Packet Radio Network  [JAW3]
      R 128.024.rrr.rrr   ROCKWELL-PR   Rockwell Packet Radio Net  [EHP]
      D 128.025.rrr.rrr   BRAGG-PR      Ft. Bragg Packet Radio Net [JEM]
      D 128.026.rrr.rrr   SAC-PR        SAC Packet Radio Network   [BG5]
      D 128.027.rrr.rrr   DEMO-PR-1     Demo-1 Packet Radio Network[LCS]
      D 128.028.rrr.rrr   C3-PR         Testbed Development PR NET [BG5]
      R 128.029.rrr.rrr   MITRE         MITRE Cablenet          [99,APS]
      R 128.030.rrr.rrr   MIT-NET       MIT Local Network         [DDC2]
      R 128.031.rrr.rrr   MIT-RES       MIT Research Network      [DDC2]
      R 128.032.rrr.rrr   UCB-ETHER     UC Berkeley Ethernet      [DAM1]
      R 128.033.rrr.rrr   BBN-NET       BBN Network               [JSG5]
      R 128.034.rrr.rrr   NOSC-LCCN     NOSC / LCCN                [RH6]
      R 128.035.rrr.rrr   CISLTESTNET1  Honeywell            [48,49,RK1]
      R 128.036.rrr.rrr   YALE-NET      YALE NET               [113,JO5]
      D 128.037.rrr.rrr   YPG-NET       Yuma Proving Grounds     [8,BXA]
      D 128.038.rrr.rrr   NSWC-NET      NSWC Local Host Net       [RLH2]
      R 128.039.rrr.rrr   NTANET        NDRE-TIU                   [PS3]
      R 128.040.rrr.rrr   UCL-NET-A     UCL                        [RC7]
      R 128.041.rrr.rrr   UCL-NET-B     UCL                        [RC7]
      R 128.042.rrr.rrr   RICE-NET      Rice University     [62,113,PGM]
      R 128.043.rrr.rrr   DRENET        Canada REF ARPANET      [8,JR17]

Assigned Numbers                                                 RFC 943
Network Numbers

      D 128.044.rrr.rrr   WSMR-NET      White Sands Network        [TBS]
      C 128.045.rrr.rrr   DEC-WRL-NET   DEC WRL Network       [113,RKJ2]
      R 128.046.rrr.rrr   PURDUE-NET    Purdue Campus Network      [CAK]
      D 128.047.rrr.rrr   TACTNET       Tactical Packet Net      [7,KTP]
      C*128.048.rrr.rrr   UCDLA-NET     UCDLA MELVYL Network     [8,CXL]
      R 128.049.rrr.rrr   NOSC-ETHER    NOSC Ethernet         [113,RLB3]
      G 128.050.rrr.rrr   COINS         COINS On-Line Intel Net   [RLS6]
      G 128.051.rrr.rrr   COINSTNET     COINS TEST NETWORK        [RLS6]
      R 128.052.rrr.rrr   MIT-AI-NET    MIT AI NET             [113,MDC]
      R 128.053.rrr.rrr   SAC-PR-2      SAC PRNET Number 2         [BG5]
      R 128.054.rrr.rrr   UCSD          UC San Diego Network  [113,GH29]
      R*128.055.rrr.rrr   MFENET        LLNL MFE Network        [97,DRP]
      D 128.056.rrr.rrr   USNA-NET      US Naval Academy Network   [TXS]
      D 128.057.rrr.rrr   DEMO-PR-2     Demo-2 Packet Radio Net    [LCS]
      C*128.058.rrr.rrr   SPAR          Schlumberger PA Net    [113,RXB]
      R 128.059.rrr.rrr   CU-NET        Columbia University    [113,LH2]
      D 128.060.rrr.rrr   NRL-LAN       NRL Lab Area Net           [WF3]
      R*128.061.rrr.rrr   GATECH        Georgia Tech           [113,SXA]
      R 128.062.rrr.rrr   MCC-NET       MCC Corporate Net      [113,CBD]
      R 128.063.rrr.rrr   BRL-SUBNET    BRL-SUBNET-EXP            [RBN1]
      R 128.064.rrr.rrr-128.079.rrr.rrr Net Dynamics Exp           [ZSU]
      D 128.080.rrr.rrr   CECOMNET      CECOM EPR NET             [PFS2]
        128.081.rrr.rrr-191.254.rrr.rrr Unassigned                 [JBP]
        191.255.rrr.rrr                 Reserved                   [JBP]

   Class C Networks

      * Internet Address  Name          Network               References
      - ----------------  ----          -------               ----------
        192.000.000.rrr                 Reserved                   [JBP]
      R 192.000.001.rrr   BBN-TEST-C    BBN-GATE-TEST-C            [RH6]
        192.000.002.rrr-192.000.255.rrr Unassigned                 [JBP]
      R 192.001.000.rrr-192.001.008.rrr BBN local networks         [SGC]
      R 192.001.009.rrr   BBN-ENET3     BBN-ENET3                  [SGC]
      R 192.001.010.rrr   BBN-NETR      BBN-NETR                   [SGC]
      R 192.001.011.rrr   BBN-SPC-ENET  BBN-SPC-ENET               [SGC]
      R 192.001.012.rrr-192.003.255.rrr BBN local networks         [SGC]
      R*192.004.000.rrr-192.004.255.rrr Bellcore-Net           [113,PXK]
      R 192.005.001.rrr   CISLHYPERNET  Honeywell                  [RK1]
      R 192.005.002.rrr   WISC          Univ of Wisconsin Madison [RS23]
      C 192.005.003.rrr   HP-DESIGN-AIDS HP Design Aids            [NXK]
      C 192.005.004.rrr   HP-TCG-UNIX   Hewlett Packard TCG Unix   [NXK]
      R 192.005.005.rrr   DEC-MRNET     DEC Marlboro Ethernet  [106,KWP]
      R 192.005.006.rrr   DEC-MRRAD     DEC Marlboro Developmt [106,KWP]
      R 192.005.007.rrr   CIT-CS-NET    Caltech-CS-Net         [112,DSW]
      R 192.005.008.rrr   WASHINGTON    University of Washington  [JAR4]
      R 192.005.009.rrr   AERONET       Aerospace Labnet         [2,LCN]
      R 192.005.010.rrr   ECLNET        USC-ECL-CAMPUS-NET        [MAB4]

Assigned Numbers                                                 RFC 943
Network Numbers

      R 192.005.011.rrr   CSS-RING      SEISMIC-RESEARCH-NET       [RR2]
      R 192.005.012.rrr   UTAH-NET      UTAH-COMPUTER-SCIENCE-NET  [RF1]
      R 192.005.013.rrr   GSWDNET       Compion Network        [113,FAS]
      R 192.005.014.rrr   RAND-NET      RAND Network           [113,JDG]
      R 192.005.015.rrr   NYU-NET       NYU Network                [EF5]
      R 192.005.016.rrr   LANL-LAND     Los Alamos Dev LAN    [113,JC11]
      R 192.005.017.rrr   NRL-NET       Naval Research Lab          [AP]
      R 192.005.018.rrr   IPTO-NET      ARPA-IPTO Office Net      [REK2]
      R 192.005.019.rrr   UCIICS        UCI-ICS Res Net            [MTR]
      R 192.005.020.rrr   CISLTTYNET    Honeywell                  [RK1]
      D 192.005.021.rrr   BRLNET1       BRLNET1                 [8,MJM2]
      D 192.005.022.rrr   BRLNET2       BRLNET2                 [8,MJM2]
      D 192.005.023.rrr   BRLNET3       BRLNET3                 [8,MJM2]
      D 192.005.024.rrr   BRLNET4       BRLNET4                 [8,MJM2]
      D 192.005.025.rrr   BRLNET5       BRLNET5                 [8,MJM2]
      D 192.005.026.rrr   NSRDCOA-NET   NSRDC Office Auto Net      [TC4]
      D 192.005.027.rrr   DTNSRDC-NET   DTNSRDC-NET                [TC4]
      R 192.005.028.rrr   RSRE-NULL     RSRE-NULL                 [RNM1]
      R 192.005.029.rrr   RSRE-ACC      RSRE-ACC                  [RNM1]
      R 192.005.030.rrr   RSRE-PR       RSRE-PR                   [RNM1]
      R*192.005.031.rrr   SIEMENS-NET   Siemens Research Network   [PXN]
      R 192.005.032.rrr   CISLTESTNET2  Honeywell            [48,49,RK1]
      R 192.005.033.rrr   CISLTESTNET3  Honeywell            [29,30,RK1]
      R 192.005.034.rrr   CISLTESTNET4  Honeywell            [29,30,RK1]
      R 192.005.035.rrr   RIACS         USRA                  [113,RLB1]
      R 192.005.036.rrr   CORNELL-CS    CORNELL CS Research    [113,DK2]
      R 192.005.037.rrr   UR-CS-NET     U of R CS 3Mb Net       [60,LB1]
      R 192.005.038.rrr   SRI-C3ETHER   SRI-AITAD C3ETHERNET   [113,BG5]
      R 192.005.039.rrr   UDEL-EECIS    Udel EECIS LAN         [107,CC2]
      R 192.005.040.rrr   PUCC-NET-A    PURDUE Comp Cntr Net      [JRS8]
      D 192.005.041.rrr   WISLAN        WIS Research LAN       [99,JRM1]
      D 192.005.042.rrr   AFDSC-HYPER   AFDSC Hypernet            [MCA1]
      R 192.005.043.rrr   CUCSNET       Columbia CS Net        [113,LH2]
      R 192.005.044.rrr   Farber-PC-Net Farber PC Network          [DJF]
      R 192.005.045.rrr   AIDS-NET      AI&DS Network           [113,HA]
      R 192.005.046.rrr   NTA-RING      NDRE-RING                  [PS3]
      R 192.005.047.rrr   NSRDC         NSRDC                      [PXM]
      R 192.005.048.rrr   PURDUE-CS-EN  Purdue CS Ethernet     [113,CAK]
      R 192.005.049.rrr   UCSF          Univ of Calif, San Fran[107,TF6]
      R 192.005.050.rrr   CTH-CS-NET    Chalmers CSN Net       [107,UXB]
      R 192.005.051.rrr   Theorynet     Cornell Theory Center [113,AB13]
      R 192.005.052.rrr   NLM-ETHER     NLM-LHNCBC-ETHERNET     [80,JA1]
      R 192.005.053.rrr   UR-CS-ETHER   U of R CS 10Mb Net      [60,LB1]
      R 192.005.054.rrr   AERO-A6       Aerospace                [2,LCN]
      R*192.005.055.rrr   UCLA-CECS     UCLA-CECS Network      [113,RBW]
      C 192.005.056.rrr   TARTAN-NET    Tartan Labs                [SXB]
      R 192.005.057.rrr   UDEL-CC       UDEL Comp Center      [107,RR18]
      R 192.005.058.rrr   CSNET-PDN     CSNET X.25 Network     [54,RDR4]

Assigned Numbers                                                 RFC 943
Network Numbers

      R*192.005.059.rrr   Inria SM90    Inria GIP SM-90            [MXS]
      R*192.005.060.rrr   SM90 X1       Inria SM-90 exp. 1         [MXS]
      R*192.005.061.rrr   SM90 X2       Inria SM-90 exp. 2         [MXS]
      R*192.005.062.rrr   LITP SM90     LITP SM-90                 [MXS]
      R 192.005.064.rrr   AMES-NAS-NET  NASA ARC NAS LAN      [106,MF31]
      R 192.005.065.rrr   NPRDC-Ether   NPRDC TRCF Ethernet        [LRB]
      R 192.005.066.rrr   HARV-NET      Harvard Comp Sci Net      [SB28]
      R 192.005.067.rrr   CECOM-ETHER   CECOM ADDCOMPE ETHER   [107,GIH]
      R 192.005.068.rrr   AERO-130      AEROSPACE-130              [LCN]
      R 192.005.069.rrr   UIUC-NET      Univ of IL at Urbana   [113,AXC]
      G 192.005.070.rrr   CELAN         COINS Exper. LAN           [MXM]
      R 192.005.071.rrr   SAC-ETHER     SAC C3 Ethernet        [113,BG5]
      R*192.005.072.rrr-192.005.087.rrr U Chicago                  [TXN]
      R 192.005.088.rrr   YALE-EE-NET   YALE-EE-NET           [113,AG22]
      R 192.005.089.rrr   UTEXAS-NET    U. Texas Austin Net   [113,JSQ1]
      R 192.005.090.rrr   HARV-ETHER    Harvard CS Ethernet       [SB28]
      R 192.005.091.rrr   PURDUE-ECN1   Purdue ECN          [32,51,GG11]
      R 192.005.092.rrr   BRAGG-ETHER   SRI Bragg Ether        [108,GIH]
      R 192.005.093.rrr   SRI-DEMO      SRI Ether Demo         [108,GIH]
      R*192.005.094.rrr   SDCRDCF-10MB  SDC R&D primary net   [113,DJV1]
      R*192.005.095.rrr   SDCRDCF-3MB   SDC R&D old net        [60,DJV1]
      R*192.005.096.rrr   UBC-CS-NET    UBC Comp Sci Net       [113,PXB]
      R*192.005.097.rrr   UCLA-CS-LNI   UCLA CS LNI Network        [RBW]
      R*192.005.098.rrr   UCLA-PIC      UCLA PIC Network       [113,RBW]
      R 192.005.099.rrr   SPACENET      S-1 Workstation Network[113,TXW]
        192.005.100.rrr   Unassigned    Unassigned                 [JBP]
      R 192.005.101.rrr   PUCC-GW-NET   Purdue Gateway Network    [JRS8]
      R 192.005.102.rrr   PUCC-RHF-NET  PUCC RHF Based Net        [JRS8]
      C*192.005.103.rrr   TYM-NTD-NET   Tymnet NTD Ethernet        [SMF]
      R 192.005.104.rrr   THINK-INET    Thinking Machines     [113,BJN1]
      R 192.005.105.rrr   CCA-POND      CCA Ethernet1 (POND)   [113,AL6]
      C*192.005.106.rrr   BITSTREAM     Bitstream Type Foundry [113,PXA]
      R*192.005.107.rrr   PASC-ETHER    IBM PASC Ethernet      [113,GXL]
      R*192.005.108.rrr   PASC-BB       IBM PASC Broadband      [52,GXL]
        192.005.109.rrr-192.005.255.rrr Unassigned                 [JBP]
      C*192.006.000.rrr-192.006.255.rrr Hewlett Packard            [AXG]
      C*192.007.000.rrr-192.007.255.rrr Computer Consoles, Inc.   [RA11]
      C*192.008.000.rrr-192.008.255.rrr Spartacus Computers, Inc.  [SXM]
      C*192.009.000.rrr-192.009.255.rrr SUN Microsystem, Inc.      [WNJ]
      C*192.010.000.rrr-192.010.040.rrr Symbolics, Inc.            [CH2]
      R 192.010.041.rrr   SCRC-ETHERNET SCRC ETHERNET          [113,CH2]
      C*192.010.042.rrr-192.010.255.rrr Symbolics, Inc.            [CH2]
      C*192.011.000.rrr-192.011.255.rrr ATT, Bell Labs            [MH12]
      C 192.012.000.rrr   CADMUS-ETHERNET CADMUS-NET               [MS9]
      C 192.012.001.rrr   CADMUS-EXP-1  CADMUS-NET-EXP-1           [MS9]
      C 192.012.002.rrr   CADMUS-EXP-2  CADMUS-NET-EXP-2           [MS9]
      C*192.012.003.rrr   FLAIR         Fairchild AI Lab Net  [113,AMS1]
      C*192.012.004.rrr   SCG-NET       Hughes SCG Net         [109,MXP]

Assigned Numbers                                                 RFC 943
Network Numbers

      R 192.012.005.rrr   AIC-LISPMS    SRI-AIC-LispMachNet    [113,PM4]
      R 192.012.006.rrr   NPS-C2        NPS-C2                 [113,AW9]
      R 192.012.007.rrr   NYU-CS-ETHER  NYU CompSci Ethernet   [113,LOU]
      D 192.012.008.rrr   PICANET1      Picatinny Arsenal LAN1[113,RFD1]
      R 192.012.009.rrr   CADRE-NET     Decision Systems Lab       [SM6]
      R 192.012.010.rrr   CORNELL-ENG   Cornell-Engineering    [113,BN9]
      R 192.012.011.rrr   MIT-36        MIT Building 36       [113,RH60]
      R 192.012.012.rrr   WISC-ETHER    Wisconsin Ether Net    [113,CBP]
      R 192.012.013.rrr   JHU-NET1      JHU-NET1              [113,MO14]
      R 192.012.014.rrr   JHU-NET2      JHU-NET2              [113,MO14]
      R 192.012.015.rrr   BROOKNET      BNL Brooknet III        [113,GC]
      R 192.012.016.rrr   PRMNET        SRI-SURAN-EN          [113,BP17]
      G 192.012.017.rrr   LLL-TIS-NET   LLL-TIS-NET       [106,110,GP10]
      R 192.012.018.rrr   CIT-CS-10NET  Caltech 10Meg EtherNet[112,AD22]
      R 192.012.019.rrr   CIT-NET       Caltech Campus Net    [112,AD22]
      R 192.012.020.rrr   CIT-SUN-NET   Caltech Sun Net       [112,AD22]
      R 192.012.021.rrr   CIT-PHYSCOMP  Caltech Phys Comp Net [112,AD22]
      R 192.012.022.rrr   UTCSRES       UTCS Net Research     [113,JSQ1]
      R 192.012.023.rrr   UTCSTTY       UTCS TTY Kludgenet    [113,JSQ1]
      R 192.012.024.rrr   MICANET       MITRE (Experimental)       [JN2]
      R 192.012.025.rrr   CSS-GRAMINAE  CSS Workstation Net     [55,RR2]
      R 192.012.026.rrr   NOSC-NETR     Net-R Testbed at BBN   [94,CP10]
      R 192.012.027.rrr   UR-LASER      UR Laser Energetics    [113,WXL]
      R*192.012.028.rrr   RIACS-X-NET   RIACS-Experimental-Net    [DG28]
      D 192.012.029.rrr   RF-EVANS      ADDCOMPE DC3 LAN1     [107,MB31]
      D 192.012.030.rrr   RF-HEX-A      ADDCOMPE DC3 LAN2     [107,MB31]
      D 192.012.031.rrr   USNA-ENET     USNA Engineering Net   [107,TXS]
      R*192.012.032.rrr   CMU-VINEYARD  CMU File Cluster Net   [113,MXK]
      R 192.012.033.rrr   SRI-CSL-NET   SRI-CSL 10MB Ethernet     [GEOF]
      C*192.012.034.rrr-192.012.043.rrr Schlumberger PA Net    [113,RXB]
      R 192.012.044.rrr   NRTC-NET      Northrop Research Net [113,RSM1]
      R 192.012.045.rrr   ACC-SB-IMP-NET ACC Santa Barbara IMP    [AB20]
      R 192.012.046.rrr   ACC-SB-ETHER  ACC Santa Barbara Ethernet[AB20]
      R 192.012.047.rrr   UMN-UCC-VA    Univ. of Minnesota         [RXG]
      G 192.012.048.rrr   AMES-ED-EXPNET Code ED Exp. Net.    [113,MSM1]
      G 192.012.049.rrr   AMES-ED-NET   Code ED IP Net        [113,MSM1]
      G 192.012.050.rrr   AMES-DB-NET   Ames DBridge Net      [113,MSM1]
      R 192.012.051.rrr   THINK-CHAOS   TMC Chaos             [113,BJN1]
      R*192.012.052.rrr   NEURO-NET     NEURO-NET              [113,JXB]
      R*192.012.053.rrr   PU-LCA        Princeton U. LCA       [113,CXH]
      R 192.012.054.rrr   WISC-MADISON  Univ Wisc - MACC       [113,JXD]
      R 192.012.055.rrr   HAZ-LPR-BETA  Hazeltine LPR Net      [113,KXK]
      R 192.012.056.rrr   UTAH-AP-NET   Utah-Appolo-Ring-Net      [JL15]
      R 192.012.057.rrr   MCC-AI-NET    MCC AI Subnet          [113,CBD]
      R 192.012.058.rrr   MCC-CAD-NET   MCC CAD Subnet         [113,CBD]
      R 192.012.059.rrr   MCC-DB-NET    MCC DB Subnet          [113,CBD]
      R 192.012.060.rrr   MCC-HI-NET    MCC HI Subnet          [113,CBD]
      R 192.012.061.rrr   MCC-SW-NET    MCC SW Subnet          [113,CBD]

Assigned Numbers                                                 RFC 943
Network Numbers

      R 192.012.062.rrr   DREA-ENET     DREA Lispm & Vaxen    [113,GLH5]
      R 192.012.063.rrr   CYPRESS       CYPRESS Serial Net         [CAK]
      D 192.012.064.rrr   LOGNET        Logistics Net GW        [55,JXR]
        192.012.065.rrr-192.012.255.rrr Unassigned                 [JBP]
      D 192.013.000.rrr-192.014.255.rrr DODIIS Subnetworks         [AY5]
      C*192.015.000.rrr-192.015.255.rrr NBINET                    [DM27]
      G 192.016.000.rrr-192.016.049.rrr LANLLAN               [113,JC11]
        192.016.050.rrr-223.255.254.rrr Unassigned                 [JBP]
        223.255.255.rrr                 Reserved                   [JBP]

   Other Reserved Internet Addresses

      * Internet Address  Name          Network               References
      - ----------------  ----          -------               ---------- Reserved                   [JBP]

Assigned Numbers                                                 RFC 943
Network Numbers

   Network Totals

      Assigned for the ARPA-Internet and the DDN-Internet

         Class         A         B         C     Total

         Research      7        56       870       933

         Defense       8        15       526       549

         Government    0         2        55        57

         Commercial    2         1         6         9

         Total        17        74      1457      1548

      Allocated for Internet and Independent Uses

         Class         A         B         C     Total

         Research      7        57      1415      1479

         Defense       8        15       526       549

         Government    0         2        55        57

         Commercial    2         3      1555      1560

         Total        17        77      3551      3645

      Maximum Allowed

         Class         A         B         C     Total

         Research      8      1024     65536     66568

         Defense      24      3072    458752    461848

         Government   24      3072    458752    461848

         Commercial   74      9214   1114137   1123394

         Total       126     16382   2097150   2113658

Assigned Numbers                                                 RFC 943
Version Numbers

                        ASSIGNED VERSION NUMBERS

   In the Internet Protocol (IP) [35,80] there is a field to identify
   the version of the internetwork general protocol.  This field is 4
   bits in size.

   Assigned Internet Version Numbers

      Decimal   Keyword    Version                            References
      -------   -------    -------                            ----------
          0                Reserved                                [JBP]
        1-3                Unassigned                              [JBP]
          4       IP       Internet Protocol                 [33,73,JBP]
          5       ST       ST Datagram Mode                     [36,JWF]
       6-14                Unassigned                              [JBP]
         15                Reserved                                [JBP]

Assigned Numbers                                                 RFC 943
Protocol Numbers

                       ASSIGNED PROTOCOL NUMBERS

   In the Internet Protocol (IP) [35,80] there is a field, called
   Protocol, to identify the the next level protocol.  This is an 8 bit

   Assigned Internet Protocol Numbers

      Decimal    Keyword     Protocol                         References
      -------    -------     --------                         ----------
           0                 Reserved                              [JBP]
           1     ICMP        Internet Control Message           [72,JBP]
           2                 Unassigned                            [JBP]
           3     GGP         Gateway-to-Gateway                  [47,MB]
           4                 Unassigned                            [JBP]
           5     ST          Stream                             [39,JWF]
           6     TCP         Transmission Control            [35,81,JBP]
           7     UCL         UCL                                    [PK]
           8     EGP         Exterior Gateway Protocol         [96,DLM1]
           9     IGP         any private interior gateway          [JBP]
          10     BBN-RCC-MON BBN RCC Monitoring                    [SGC]
          11     NVP-II      Network Voice Protocol             [18,SC3]
          12     PUP         PUP                                [12,HGM]
          13     ARGUS       ARGUS                                [RWS4]
          14     EMCON       EMCON                                 [BN7]
          15     XNET        Cross Net Debugger                [45,JFH2]
          16     CHAOS       Chaos                                 [NC3]
          17     UDP         User Datagram                   [35,79,JBP]
          18     MUX         Multiplexing                       [19,JBP]
          19     DCN-MEAS    DCN Measurement Subsystems           [DLM1]
          20     HMP         Host Monitoring                     [5,RH6]
          21     PRM         Packet Radio Measurement              [ZSU]
          22     XNS-IDP     XEROX NS IDP                      [114,LLG]
          23     TRUNK-1     Trunk-1                               [BML]
          24     TRUNK-2     Trunk-2                               [BML]
          25     LEAF-1      Leaf-1                                [BML]
          26     LEAF-2      Leaf-2                                [BML]
          27     RDP         Reliable Data Protocol            [111,RH6]
          28     IRTP        Internet Reliable Transaction      [61,TXM]
       29-60                 Unassigned                            [JBP]
          61                 any host internal protocol            [JBP]
          62     CFTP        CFTP                              [40,HCF2]
          63                 any local network                     [JBP]
          64     SAT-EXPAK   SATNET and Backroom EXPAK            [DM11]
          65     MIT-SUBNET  MIT Subnet Support                    [NC3]
          66     RVD         MIT Remote Virtual Disk Protocol      [MBG]
          67     IPPC        Internet Pluribus Packet Core        [DM11]
          68                 any distributed file system           [JBP]

Assigned Numbers                                                 RFC 943
Protocol Numbers

          69     SAT-MON     SATNET Monitoring                    [DM11]
          70                 Unassigned                            [JBP]
          71     IPCV        Internet Packet Core Utility         [DM11]
       72-75                 Unassigned                            [JBP]
          76     BR-SAT-MON  Backroom SATNET Monitoring           [DM11]
          77                 Unassigned                            [JBP]
          78     WB-MON      WIDEBAND Monitoring                  [DM11]
          79     WB-EXPAK    WIDEBAND EXPAK                       [DM11]
      80-254                 Unassigned                            [JBP]
         255                 Reserved                              [JBP]

Assigned Numbers                                                 RFC 943
Port Numbers

                         ASSIGNED PORT NUMBERS

   Ports are used in the TCP [35,81] to name the ends of logical
   connections which carry long term conversations.  For the purpose of
   providing services to unknown callers, a service contact port is
   defined.  This list specifies the port used by the server process as
   its contact port.  The contact port is sometimes called the
   "well-known port".

   To the extent possible, these same port assignments are used with the
   UDP [35,79].

   The assigned ports use a small portion of the possible port numbers.
   The assigned ports have all except the low order eight bits cleared
   to zero.  The low order eight bits are specified here.

   Port Assignments:

      Decimal   Keyword   Description                         References
      -------   -------   -----------                         ----------
      0                   Reserved                                 [JBP]
      1-4                 Unassigned                               [JBP]
      5        RJE        Remote Job Entry                   [14,36,JBP]
      7        ECHO       Echo                                  [70,JBP]
      9        DISCARD    Discard                               [69,JBP]
      11       USERS      Active Users                          [65,JBP]
      13       DAYTIME    Daytime                               [68,JBP]
      15       NETSTAT    Who is up or NETSTAT                     [JBP]
      17       QUOTE      Quote of the Day                      [75,JBP]
      19       CHARGEN    Character Generator                   [67,JBP]
      20       FTP        File Transfer [Default Data]       [35,71,JBP]
      21       FTP        File Transfer [Control]            [35,71,JBP]
      23       TELNET     Telnet                                [87,JBP]
      25       SMTP       Simple Mail Transfer               [35,77,JBP]
      27       NSW-FE     NSW User System FE                    [20,RHT]
      29       MSG-ICP    MSG ICP                               [63,RHT]
      31       MSG-AUTH   MSG Authentication                    [63,RHT]
      33                  Unassigned                               [JBP]
      35                  any private printer server               [JBP]
      37       TIME       Time                                  [83,JBP]
      39       RLP        Resource Location Protocol              [1,MA]
      41       GRAPHICS   Graphics                          [36,103,JBP]
      42       NAMESERVER Host Name Server                   [35,74,JBP]
      43       NICNAME    Who Is                            [35,44,JAKE]
      44       MPM-FLAGS  MPM FLAGS Protocol                       [JBP]
      45       MPM        Message Processing Module [recv]      [73,JBP]
      46       MPM        MPM [default send]                    [79,JBP]
      47       NI-FTP     NI FTP                                [109,SK]

Assigned Numbers                                                 RFC 943
Port Numbers

      49       LOGIN      Login Host Protocol                     [PHD1]
      51       LA-MAINT   IMP Logical Address Maintenance       [59,AGM]
      53       DOMAIN     Domain Name Server                       [PM1]
      55       ISI-GL     ISI Graphics Language                 [11,RB6]
      57                  any private terminal access              [JBP]
      59                  any private file service                 [JBP]
      61       NI-MAIL    NI MAIL                                 [9,SK]
      63       VIA-FTP    VIA Systems - FTP                        [DXD]
      65       TACACS-DS  TACACS-Database Service              [115,RHT]
      67                  Unassigned                               [JBP]
      69       TFTP       Trivial File Transfer              [35,90,KRS]
      71       NETRJS     Remote Job Service                 [13,36,RTB]
      72       NETRJS     Remote Job Service                 [13,36,RTB]
      73       NETRJS     Remote Job Service                 [13,36,RTB]
      74       NETRJS     Remote Job Service                 [13,36,RTB]
      75                  any private dial out service             [JBP]
      77                  any private RJE service                  [JBP]
      79       FINGER     Finger                             [36,42,KLH]
      81                  HOSTS2 Name Server                      [EAK1]
      83       HOSTS2-NS  MIT ML Device                            [DPR]
      85       MIT-ML-DEV MIT ML Device                            [DPR]
      87                  any private terminal link                [JBP]
      89       SU-MIT-TG  SU/MIT Telnet Gateway                    [MRC]
      91       MIT-DOV    MIT Dover Spooler                        [EBM]
      93       DCP        Device Control Protocol                 [DT15]
      95       SUPDUP     SUPDUP                                [23,MRC]
      97       SWIFT-RVF  Swift Remote Vitural File Protocol       [MXR]
      99       METAGRAM   Metagram Relay                          [GEOF]
      101      HOSTNAME   NIC Host Name Server              [35,43,JAKE]
      103                 Unassigned                               [JBP]
      105      CSNET-NS   Mailbox Name Nameserver             [101,MHS1]
      107      RTELNET    Remote Telnet Service                 [76,JBP]
      109      POP-2      Post Office Protocol - Version 2     [16,JKR1]
      111      SUNRPC     SUN Remote Procedure Call                [DXG]
      113      AUTH       Authentication Service              [104,MCA1]
      115      SFTP       Simple File Transfer Protocol        [54,MKL1]
      116                 Unassigned                               [JBP]
      117      UUCP-PATH  UUCP Path Service                     [34,MAE]
      119      UNTP       USENET News Transfer Protocol        [117,PL4]
      120-129             Unassigned                               [JBP]
      131                 Unassigned                               [JBP]
      132-223             Reserved                                 [JBP]
      224-241             Unassigned                               [JBP]
      243      SUR-MEAS   Survey Measurement                     [10,AV]
      245      LINK       LINK                                 [15,RDB2]
      247-255             Unassigned                               [JBP]

Assigned Numbers                                                 RFC 943
Autonomous System Numbers


   The Exterior Gateway Protocol (EGP) [96,93] specifies that groups of
   gateways may form autonomous systems.  The EGP provides a 16-bit
   field for identifying such systems.  The values of this field are
   registered here.

   Autonomous System Numbers:

      Decimal   Name                                          References
      -------   ----                                          ----------
            0   Reserved                                           [JBP]
            1   The BBN Core Gateways                               [MB]
            2   DCN-AS                                            [DLM1]
            3   The MIT Gateways                                   [LM8]
            4   ISI-AS                                            [JKR1]
            5   Symbolics                                          [CH2]
            6   HIS-Multics                                    [BIM,RK1]
            7   UK-MOD                                            [RNM1]
            8   RICE-AS                                            [PGM]
            9   CMU-ROUTER                                          [MA]
            10  CSNET-PDN-AS                                      [RDR4]
            11  HARVARD                                           [SB28]
            12  NYU-DOMAIN                                         [EF5]
            13  BRL-AS                                            [RBN1]
            14  COLUMBIA-GW                                       [BC14]
            15  NET DYNAMICS EXP                                   [ZSU]
            16  LBL                                                 [WG]
            17  PURDUE-CS                                         [KCS1]
            18  UTEXAS                                            [JSQ1]
            19  CSS-DOMAIN                                         [RR2]
            20  UR                                                [LB16]
            21  RAND                                               [JDG]
            22  NOSC                                              [RLB3]
            23  RIACS-AS                                          [DG28]
            24  AMES-NAS-GW                                       [MF31]
            25  UCB                                               [MK17]
            26  CORNELL                                            [BN9]
            27  UMDNET                                            [JWO1]
            28  DFVLR-SYS                                         [HDC1]
            29  YALE-AS                                           [JG46]
            30  SRI-AICNET                                         [PM4]
            31  CIT-CS                                            [AD22]
            32  STANFORD                                           [PA5]
            33  DEC-WRL-AS                                        [RKJ2]
            34  UDEL-EECIS                                         [NMM]
            35  MICATON                                            [JN2]
            36  EGP-TESTOR                                        [BP17]

Assigned Numbers                                                 RFC 943
Autonomous System Numbers

            37  NSWC                                              [MXP1]
            38  UIUC                                               [AKC]
            39  NRL-ITD                                             [AP]
            40  MIT-TEST                                           [NC3]
            41  AMES                                              [MSM1]
            42  THINK-AS                                          [BJN1]
            43  BNL-AS                                              [GC]
      44-65534  Unassigned                                         [JBP]
        65535   Reserved                                           [JBP]

Assigned Numbers                                                 RFC 943
ARPANET Logical Addresses


   The ARPANET facility for "logical addressing" is described in
   RFC 878 [58].  A portion of the possible logical addresses are
   reserved for standard uses.

   There are 49,152 possible logical host addresses.  Of these, 256 are
   reserved for assignment to well-known functions.  Assignments for
   well-known functions are made by Joyce Reynolds.  Assignments for
   other logical host addresses are made by the NIC.

   Logical Address Assignments:

      Decimal    Description                                  References
      -------    -----------                                  ----------
      0          Reserved                                          [JBP]
      1          The BBN Core Gateways                              [MB]
      2-255      Unassigned                                        [JBP]
      256        Reserved                                          [JBP]

Assigned Numbers                                                 RFC 943
ARPANET Link Numbers


   The word "link" here refers to a field in the original ARPANET
   Host/IMP interface leader.  The link was originally defined as an
   8-bit field.  Later specifications defined this field as the
   "message-id" with a length of 12 bits.  The name link now refers to
   the high order 8 bits of this 12-bit message-id field.  The Host/IMP
   interface is defined in BBN Report 1822 [8].

   The low-order 4 bits of the message-id field are called the sub-link.
   Unless explicitly specified otherwise for a particular protocol,
   there is no sender to receiver significance to the sub-link.  The
   sender may use the sub-link in any way he chooses (it is returned in
   the RFNM by the destination IMP), the receiver should ignore the

   Link Assignments:

      Decimal   Description                                   References
      -------   -----------                                   ----------
      0         Reserved                                           [JBP]
      1-149     Unassigned                                         [JBP]
      150       Xerox NS IDP                                   [114,LLG]
      151       Unassigned                                         [JBP]
      152       PARC Universal Protocol                         [12,HGM]
      153       TIP Status Reporting                               [JGH]
      154       TIP Accounting                                     [JGH]
      155       Internet Protocol [regular]                  [35,80,JBP]
      156-158   Internet Protocol [experimental]             [35,80,JBP]
      159       Figleaf Link                                      [JBW1]
      160-194   Unassigned                                         [JBP]
      195       ISO-IP                                         [116,RXM]
      196-247   Experimental Protocols                             [JBP]
      248-255   Network Maintenance                                [JGH]

Assigned Numbers                                                 RFC 943
IEEE 802 SAP Numbers

                    IEEE 802 SAP NUMBERS OF INTEREST

   Some of the networks of all classes are IEEE 802 Networks.  These
   systems may use a Service Access Point field in much the same way the
   ARPANET uses the "link" field.  For further information and SAP
   number assignments, please contact: Mr. Maris Graube, Chairman, IEEE
   802, c/o Tektronix, P.O. Box 500, D/S 50-473, Beaverton,
   Oregon, 97077.


      Service Access Point               Description          References
      --------------------               -----------          ----------
      decimal  binary
         96   01100000                   DOD IP              [35,79,JBP]

   The IEEE 802.3 header does not have a type field to indicate what
   protocol is used at the next level.  As a work around for this
   problem, one can put the Ethernet type field value in the IEEE 802.3
   header's length field and use the following test to determine the
   appropriate processing on receipt.

   If the value in the length field of the IEEE 802.3 header is greater
   than the Ethernet maximum packet length, then interpret the value as
   an Ethernet type field.  Otherwise, interpret the packet as an IEEE
   802.3 packet.

Assigned Numbers                                                 RFC 943
Ethernet Numbers

                      ETHERNET NUMBERS OF INTEREST

   Many of the networks of all classes are Ethernets (10Mb) or
   Experimental Ethernets (3Mb).  These systems use a message "type"
   field in much the same way the ARPANET uses the "link" field.

   If you need an Ethernet number, contact the XEROX Corporation, Office
   Products Division, Network Systems Administration Office, 333 Coyote
   Hill Road, Palo Alto, California, 94304.


      Ethernet          Exp. Ethernet    Description          References
      -------------     -------------   -----------           ----------
      decimal  Hex      decimal  octal
         512   0200        512   1000   XEROX PUP                [1,HGM]
         513   0201        -      -     PUP Addr. Trans.           [HGM]
        1536   0600       1536   3000   XEROX NS IDP           [113,HGM]
        2048   0800        513   1001   DOD IP               [35,79,JBP]
        2049   0801        -      -     X.75 Internet              [HGM]
        2050   0802        -      -     NBS Internet               [HGM]
        2051   0803        -      -     ECMA Internet              [HGM]
        2052   0804        -      -     Chaosnet                   [HGM]
        2053   0805        -      -     X.25 Level 3               [HGM]
        2054   0806        -      -     ARP                    [63,DCP1]
        2055   0807        -      -     XNS Compatability          [HGM]
        2076   081C        -      -     Symbolics Private         [DCP1]
       32771   8003        -      -     Cronus VLN            [104,DT15]
       32772   8004        -      -     Cronus Direct         [104,DT15]
       32774   8006        -      -     Nestar                     [HGM]
       32784   8010        -      -     Excelan                    [HGM]
       32821   8035        -      -     Reverse ARP             [38,JCM]
       36864   9000        -      -     Loopback                   [HGM]

   The standard for transmission of IP datagrams over Ethernets and
   Experimental Ethernets is specified in RFC 894 [50] and RFC 895 [65]

Assigned Numbers                                                 RFC 943
Address Resolution Protocol


   The Address Resolution Protocol (ARP) specified in RFC 826 [64] has
   several parameters.  The assigned values for these parameters are
   listed here.


      Operation Code (op)

         1   REQUEST
         2   REPLY

      Hardware Type (hrd)

         Type   Description                                   References
         ----   -----------                                   ----------
           1    Ethernet (10Mb)                                    [JBP]
           2    Experimental Ethernet (3Mb)                        [JBP]
           3    Amateur Radio AX.25                                [PXK]
           4    Proton ProNET Token Ring                           [JBP]

      Protocol Type (pro)

         Use the same codes as listed in the section called "Ethernet
         Numbers of Interest".

Assigned Numbers                                                 RFC 943
Public Data Network Numbers


   One of the Internet Class A Networks is the international system of
   Public Data Networks.  This section lists the mapping between the
   Internet Addresses and the Public Data Network Addresses (X.121).


      Internet           Public Data Net    Description       References
      ---------------   -----------------   -----------       ----------                       Reserved               [JBP]   3110-317-00035 00   PURDUE-TN              [CAK]   3110-608-00027 00   UWISC-TN               [CAK]   3110-302-00024 00   UDEL-TN                [CAK]   2342-192-00149 23   UCL-VTEST               [PK]   2342-192-00300 23   UCL-TG                  [PK]   2342-192-00300 25   UK-SATNET               [PK]   3110-608-00024 00   UWISC-IBM             [MHS1]   3110-213-00045 00   RAND-TN                [MO2]   2342-192-00300 23   UCL-CS                  [PK]   3110-617-00025 00   BBN-VAN-GW            [JD21]   2405-015-50300 00   CHALMERS               [UXB]   3110-713-00165 00   RICE                  [PAM6]   3110-415-00261 00   DECWRL                [PAM6]   3110-408-00051 00   IBM-SJ                 [SA1]   2041-117-01000 00   SHAPE                  [PG3]   2628-153-90075 00   DFVLR4-X25            [HDC1]   3110-213-00032 00   ISI-VAN-GW            [JD21]   2624-522-80900 52   DFVLR5-X25            [HDC1]   2041-170-10000 00   SHAPE-X25              [JFW]       Unassigned             [JBP]                       Reserved               [JBP]

   The standard for transmission of IP datagrams over the Public Data
   Network is specified in RFC 877 [54].

Assigned Numbers                                                 RFC 943
Telnet Options

                        ASSIGNED TELNET OPTIONS

   The Telnet Protocol has a number of options that may be negotiated.
   These options are listed here.  "Official ARPA-Internet
   Protocols" [92] provides more detailed information.

   Options  Name                                              References
   -------  -----------------------                           ----------
      0     Binary Transmission                                 [85,JBP]
      1     Echo                                                [86,JBP]
      2     Reconnection                                         [6,JBP]
      3     Suppress Go Ahead                                   [89,JBP]
      4     Approx Message Size Negotiation                     [36,JBP]
      5     Status                                              [88,JBP]
      6     Timing Mark                                         [90,JBP]
      7     Remote Controlled Trans and Echo                    [82,JBP]
      8     Output Line Width                                    [4,JBP]
      9     Output Page Size                                     [5,JBP]
     10     Output Carriage-Return Disposition                  [24,JBP]
     11     Output Horizontal Tab Stops                         [28,JBP]
     12     Output Horizontal Tab Disposition                   [27,JBP]
     13     Output Formfeed Disposition                         [25,JBP]
     14     Output Vertical Tabstops                            [30,JBP]
     15     Output Vertical Tab Disposition                     [29,JBP]
     16     Output Linefeed Disposition                         [26,JBP]
     17     Extended ASCII                                     [110,JBP]
     18     Logout                                              [21,MRC]
     19     Byte Macro                                          [31,JBP]
     20     Data Entry Terminal                                 [33,JBP]
     22     SUPDUP                                           [23,22,MRC]
     22     SUPDUP Output                                       [41,MRC]
     23     Send Location                                      [53,EAK1]
     24     Terminal Type                                     [102,MHS1]
     25     End of Record                                       [77,JBP]
     26     TACACS User Identification                           [3,BA4]
     27     Output Marking                                      [98,SXS]
    255     Extended-Options-List                               [84,JBP]

Assigned Numbers                                                 RFC 943
Machine Names

                         OFFICIAL MACHINE NAMES

   These are the Official Machine Names as they appear in the NIC Host
   Table.  Their use is described in RFC 810 [37].


Assigned Numbers                                                 RFC 943
Machine Names


Assigned Numbers                                                 RFC 943
System Names

                         OFFICIAL SYSTEM NAMES

   These are the Official System Names as they appear in the NIC Host
   Table.  Their use is described in RFC 810 [37].


Assigned Numbers                                                 RFC 943
Protocol Names


   These are the Official Protocol Names.  Their use is described in
   greater detail in RFC 810 [37].

   ARGUS               - ARGUS Protocol
   AUTH                - Authentication Service
   BBN-RCC-MON         - BBN RCC Monitoring
   BR-SAT-MON          - Backroom SATNET Monitoring
   CFTP                - CFTP
   CHAOS               - CHAOS Protocol
   CHARGEN             - Character Generator Protocol
   CLOCK               - DCNET Time Server Protocol
   CSNET-NS            - CSNET Mailbox Nameserver Protocol
   DAYTIME             - Daytime Protocol
   DCN-MEAS            - DCN Measurement Subsystems Protocol
   DCP                 - Device Control Protocol
   DISCARD             - Discard Protocol
   DOMAIN              - Domain Name Server
   ECHO                - Echo Protocol
   EGP                 - Exterior Gateway Protocol
   EMCON               - Emission Control Protocol
   FINGER              - Finger Protocol
   FTP                 - File Transfer Protocol
   GGP                 - Gateway Gateway Protocol
   GRAPHICS            - Graphics Protocol
   HMP                 - Host Monitoring Protocol
   HOST2-NS            - Host2 Name Server
   HOSTNAME            - Hostname Protocol
   ICMP                - Internet Control Message Protocol
   IGP                 - Interior Gateway Protocol
   IP                  - Internet Protocol
   IPCU                - Internet Packet Core Utility
   IPPC                - Internet Pluribus Packet Core
   IRTP                - Internet Reliable Transaction Protocol
   ISI-GL              - ISI Graphics Language Protocol
   LA-MAINT            - IMP Logical Address Maintenance
   LEAF-1              - Leaf-1 Protocol
   LEAF-2              - Leaf-2 Protocol
   LINK                - Link Protocol
   LOGIN               - Login Host Protocol
   METAGRAM            - Metagram Relay
   MIT-ML-DEV          - MIT ML Device
   MIT-SUBNET          - MIT Subnet Support
   MIT-DOV             - MIT Dover Spooler
   MPM                 - Internet Message Protocol (Multimedia Mail)
   MPM-FLAGS           - MP Flags Protocol
   MSG-AUTH            - MSG Authentication Protocol

Assigned Numbers                                                 RFC 943
Protocol Names

   MSG-ICP             - MSG ICP Protocol
   MUX                 - Multiplexing Protocol
   NAMESERVER          - Host Name Server
   NETED               - Network Standard Text Editor
   NETRJS              - Remote Job Service
   NI-FTP              - NI File Transfer Protocol
   NI-MAIL             - NI Mail Protocol
   NICNAME             - Who Is Protocol
   NSW-FE              - NSW User System Front End
   NVP-II              - Network Voice Protocol
   POP2                - Post Office Protocol - Version 2
   PRM                 - Packet Radio Measurement
   PUP                 - PUP Protocol
   QUOTE               - Quote of the Day Protocol
   RDP                 - Reliable Data Protocol
   RJE                 - Remote Job Entry
   RLP                 - Resource Location Protocol
   RTELNET             - Remote Telnet Service
   RVD                 - Remote Virtual Disk Protocol
   SAT-EXPAK           - Satnet and Backroom EXPAK
   SAT-MON             - SATNET Monitoring
   SFTP                - Simple File Transfer Protocol
   SMTP                - Simple Mail Transfer Protocol
   ST                  - Stream Protocol
   SU-MIT-TG           - SU/MIT Telnet Gateway Protocol
   SUNRPC              - SUN Remote Procedure Call
   SUPDUP              - SUPDUP Protocol
   SUR-MEAS            - Survey Measurement
   SWIFT-RVF           - Remote Virtual File Protocol
   TACACS-DS           - TACACS-Database Service
   TCP                 - Transmission Control Protocol
   TELNET              - Telnet Protocol
   TFTP                - Trivial File Transfer Protocol
   TIME                - Time Server Protocol
   TRUNK-1             - Trunk-1 Protocol
   TRUNK-2             - Trunk-2 Protocol
   UCL                 - University College London Protocol
   UDP                 - User Datagram Protocol
   UNTP                - USENET News Transfer Protocol
   USERS               - Active Users Protocol
   UUCP-PATH           - UUCP Path Service
   VIA-FTP             - VIA Systems-File Transfer Protocol
   WB-EXPAK            - Wideband EXPAK
   WB-MON              - Wideband Monitoring
   XNET                - Cross Net Debugger
   XNS-IDP             - Xerox NS IDP

Assigned Numbers                                                 RFC 943
Terminal Type Names

                      OFFICIAL TERMINAL TYPE NAMES

   These are the Official Terminal Type Names.  Their use is described
   in RFC 930 [102].  The maximum length of a name is 40 characters.


Assigned Numbers                                                 RFC 943
Terminal Type Names


Assigned Numbers                                                 RFC 943
Terminal Type Names


Assigned Numbers                                                 RFC 943
Terminal Type Names


Assigned Numbers                                                 RFC 943


   [1]    Accetta, M., "Resource Location Protocol", RFC 887,
          Carnegie-Mellon University, December 1983.

   [2]    Aerospace, Internal Report, ATM-83(3920-01)-3, 1982.

   [3]    Anderson, B., "TACACS User Identification Telnet Option",
          RFC 927, BBN, December 1984.

   [4]    ARPANET Protocol Handbook, "Telnet Output Line Width Option",
          NIC 20196, November 1973.

   [5]    ARPANET Protocol Handbook, "Telnet Output Page Size Option",
          NIC 20197, November 1973.

   [6]    ARPANET Protocol Handbook, "Telnet Reconnection Option",
          NIC 15391, August 1973.

   [7]    BBN Proposal No. P83-COM-40, "Packet Switched Overlay to
          Tactical Multichannel/Satellite Systems".

   [8]    BBN, "Specifications for the Interconnection of a Host and an
          IMP", Report 1822, Bolt Beranek and Newman, Cambridge,
          Massachusetts, revised, December 1981.

   [9]    Bennett, C., "A Simple NIFTP-Based Mail System", IEN 169,
          University College, London, January 1981.

   [10]   Bhushan, A., "A Report on the Survey Project", RFC 530,
          NIC 17375, June 1973.

   [11]   Bisbey, R., D. Hollingworth, and B. Britt, "Graphics Language
          (version 2.1)", ISI/TM-80-18, Information Sciences Institute,
          July 1980.

   [12]   Boggs, D., J. Shoch, E. Taft, and R. Metcalfe, "PUP: An
          Internetwork Architecture", XEROX Palo Alto Research Center,
          CSL-79-10, July 1979; also in IEEE Transactions on
          Communication, Volume COM-28, Number 4, April 1980.

   [13]   Braden, R., "NETRJS Protocol", RFC 740, NIC 42423,
          November 1977.

   [14]   Bressler, B., "Remote Job Entry Protocol",  RFC 407,
          NIC 12112, October 72.

Assigned Numbers                                                 RFC 943

   [15]   Bressler, R., "Inter-Entity Communication -- An Experiment",
          RFC 441, NIC 13773, January 1973.

   [16]   Butler, M., J. Postel, D. Chase, J. Goldberger, and
          J. K. Reynolds, "Post Office Protocol - Version 2", RFC 937,
          Obsoletes RFC 918, Information Sciences Institute,
          February 1985.

   [17]   Clark, D., "Revision of DSP Specification", Local Network
          Note 9, Laboratory for Computer Science, MIT, June 1977.

   [18]   Cohen, D., "Specifications for the Network Voice Protocol",
          RFC 741, ISI/RR 7539, Information Sciences Institute,
          March 1976.

   [19]   Cohen, D. and J. Postel, "Multiplexing Protocol", IEN 90,
          Information Sciences Institute, May 1979.

   [20]   COMPASS, "Semi-Annual Technical Report", CADD-7603-0411,
          Massachusetts Computer Associates, 4 March 1976. Also as,
          "National Software Works, Status Report No. 1,"
          RADC-TR-76-276, Volume 1, September 1976. And COMPASS. "Second
          Semi-Annual Report," CADD-7608-1611, Massachusetts Computer
          Associates, August 1976.

   [21]   Crispin, M., "Telnet Logout Option", Stanford University-AI,
          RFC 727, April 1977.

   [22]   Crispin, M., "Telnet SUPDUP Option", Stanford University-AI,
          RFC 736, October 1977.

   [23]   Crispin, M., "SUPDUP Protocol", RFC 734, NIC 41953,
          October 1977.

   [24]   Crocker, D., "Telnet Output Carriage-Return Disposition
          Option", RFC 652, October 1974.

   [25]   Crocker, D., "Telnet Output Formfeed Disposition Option",
          RFC 655, October 1974.

   [26]   Crocker, D., "Telnet Output Linefeed Disposition", RFC 658,
          October 1974.

   [27]   Crocker, D., "Telnet Output Horizontal Tab Disposition
          Option", RFC 654,

   [28]   Crocker, D., "Telnet Output Horizontal Tabstops Option",
          RFC 653, October 1974.

Assigned Numbers                                                 RFC 943

   [29]   Crocker, D., "Telnet Output Vertical Tab Disposition Option",
          RFC 657, October 1974.

   [30]   Crocker, D., "Telnet Output Vertical Tabstops Option",
          RFC 656, October 1974.

   [31]   Crocker, D. H. and R. H. Gumpertz, "Revised Telnet Byte Marco
          Option", RFC 735, November 1977.

   [32]   Croft, W. J., "Unix Networking at Purdue", USENIX Conference,

   [33]   Day, J., "Telnet Data Entry Terminal Option", RFC 732,
          September 1977.

   [34]   Elvy, M., and R. Nedved, "Network Mail Path Service", RFC 915,
          Harvard and CMU, December 1984.

   [35]   Feinler, E., "Internet Protocol Transition Workbook", Network
          Information Center, SRI International, March 1982.

   [36]   Feinler, E. and J. Postel, eds., "ARPANET Protocol Handbook",
          NIC 7104, for the Defense Communications Agency by SRI
          International, Menlo Park, California, Revised January 1978.

   [37]   Feinler, E., K. Harrenstien, and Z. Su, "DoD Internet Host
          Table Specification", RFC 810, SRI International, March 1982.

   [38]   Finlayson, R., T. Mann, J. Mogul, and M. Theimer, "A Reverse
          Address Resolution Protocol", RFC 903, Stanford University,
          June 1984.

   [39]   Forgie, J., "ST - A Proposed Internet Stream Protocol",
          IEN 119, MIT Lincoln Laboratory, September 1979.

   [40]   Forsdick, H., "CFTP", Network Message, Bolt Beranek and
          Newman, January 1982.

   [41]   Greenberg, B., "Telnet SUPDUP-OUTPUT Option", RFC 749,
          MIT-Multics, September 1978.

   [42]   Harrenstien, K., "Name/Finger", RFC 742, NIC 42758,
          SRI International,  December 1977.

   [43]   Harrenstien, K., V. White, and E. Feinler, "Hostnames Server",
          RFC 811, SRI International, March 1982.

Assigned Numbers                                                 RFC 943

   [44]   Harrenstien, K., and V. White, "Nicname/Whois", RFC 812,
          SRI International, March 1982.

   [45]   Haverty, J., "XNET Formats for Internet Protocol Version 4",
          IEN 158, October 1980.

   [46]   Hinden, R. M., "A Host Monitoring Protocol", RFC 869,
          Bolt Beranek and Newman, December 1983.

   [47]   Hinden, R., and A. Sheltzer, "The DARPA Internet Gateway",
          RFC 823, September 1982.

   [48]   Honeywell CISL, Internal Document, "AFSDSC Hyperchannel RPQ
          Project Plan".

   [49]   Honeywell CISL, Internal Document, "Multics MR11 PFS".

   [50]   Hornig, C., "A Standard for the Transmission of IP Datagrams
          over Ethernet Networks, RFC 894, Symbolics, April 1984.

   [51]   Hwang, K., W. J. Croft and G. H. Goble, "A Unix-Based Local
          Computer Network with Load Balancing", IEEE Computer,
          April 1982.

   [52]   IBM Corporation, "Technical Reference Manual for the IBM PC
          Network", 6322505, IBM, Boca Raton, Florida, 1984.

   [53]   Killian, E., "Telnet Send-Location Option", RFC 779,
          April 1981.

   [54]   Korb, J. T., "A Standard for the Transmission of IP Datagrams
          Over Public Data Networks", RFC 877, Purdue University,
          September 1983.

   [55]   Leffler, S. J., et al., "4.2bsd Network Implementation Notes",
          University of California, Berkeley, July 1983.

   [56]   Lottor, M. K., "Simple File Transfer Protocol", RFC 913, MIT,
          September 1984.

   [57]   Macgregor, W., and D. Tappan, "The CRONUS Virtual Local
          Network", RFC 824, Bolt Beranek and Newman, August 1982.

   [58]   Malis, A.,  "The ARPANET 1822L Host Access Protocol", RFC 878,
          BBN-CC, Cambridge, December 1983.

   [59]   Malis, A., "Logical Addressing Implementation Specification",
          BBN Report 5256, pp 31-36, May 1983.

Assigned Numbers                                                 RFC 943

   [60]   Metcalfe, R. M. and D. R. Boggs, "Ethernet: Distributed Packet
          Switching for Local Computer Networks", Communications of the
          ACM, 19 (7), pp 395-402, July 1976.

   [61]   Miller, T., "Internet Reliable Transaction Protocol", RFC 938,
          ACC, February 1985.

   [62]   Mills, D., "DCN Local Network Protocols", RFC 891, Linkabit,
          December 1983.

   [63]   NSW Protocol Committee, "MSG: The Interprocess Communication
          Facility for the National Software Works", CADD-7612-2411,
          Massachusetts Computer Associates, BBN 3237, Bolt Beranek and
          Newman, Revised December 1976.

   [64]   Plummer, D., "An Ethernet Address Resolution Protocol or
          Converting Network Protocol Addresses to 48-bit Ethernet
          Addresses for Transmission on Ethernet Hardware", RFC 826,
          MIT-LCS, November 1982.

   [65]   Postel, J., "Active Users", RFC 866, Information
          Sciences Institute, May 1983.

   [66]   Postel, J., "A Standard for the Transmission of IP Datagrams
          over Experimental Ethernet Networks, RFC 895, Information
          Sciences Institute, April 1984.

   [67]   Postel, J., "Character Generator Protocol", RFC 864,
          Information Sciences Institute, May 1983.

   [68]   Postel, J., "Daytime Protocol", RFC 867,
          Information Sciences Institute, May 1983.

   [69]   Postel, J., "Discard Protocol", RFC 863,
          Information Sciences Institute, May 1983.

   [70]   Postel, J., "Echo Protocol", RFC 862,
          Information Sciences Institute, May 1983.

   [71]   Postel, J., "File Transfer Protocol", RFC 765, IEN 149,
          Information Sciences Institute, June 1980.

   [72]   Postel, J., "Internet Control Message Protocol - DARPA
          Internet Program Protocol Specification", RFC 792,
          Information Sciences Institute, September 1981.

   [73]   Postel, J., "Internet Message Protocol", RFC 759, IEN 113,
          Information Sciences Institute, August 1980.

Assigned Numbers                                                 RFC 943

   [74]   Postel, J., "Name Server", IEN 116,
          Information Sciences Institute, August 1979.

   [75]   Postel, J., "Quote of the Day Protocol", RFC 865,
          Information Sciences Institute, May 1983.

   [76]   Postel, J., "Remote Telnet Service", RFC 818,
          Information Sciences Institute, November 1982.

   [77]   Postel, J., "Simple Mail Transfer Protocol", RFC 821,
          Information Sciences Institute, August 1982.

   [78]   Postel, J., "Telnet End of Record Option", RFC 885,
          Information Sciences Institute, December 1983.

   [79]   Postel, J., "User Datagram Protocol", RFC 768
          Information Sciences Institute, August 1980.

   [80]   Postel, J., ed., "Internet Protocol - DARPA Internet Program
          Protocol Specification", RFC 791, Information Sciences
          Institute, September 1981.

   [81]   Postel, J., ed., "Transmission Control Protocol - DARPA
          Internet Program Protocol Specification", RFC 793,
          Information Sciences Institute, September 1981.

   [82]   Postel, J. and D. Crocker, "Remote Controlled Transmission and
          Echoing Telnet Option", RFC 726, March 1977.

   [83]   Postel, J., and K. Harrenstien, "Time Protocol", RFC 868,
          Information Sciences Institute, May 1983.

   [84]   Postel, J. and J. Reynolds, "Telnet Extended Options - List
          Option", RFC 861, Information Sciences Institute, May 1983.

   [85]   Postel, J. and J. Reynolds, "Telnet Binary Transmission",
          RFC 856, Information Sciences Institute, May 1983.

   [86]   Postel, J. and J. Reynolds, "Telnet Echo Option", RFC 857,
          Information Sciences Institute, May 1983.

   [87]   Postel, J., and J. Reynolds, "Telnet Protocol Specification",
          RFC 854, Information Sciences Institute, May 1983.

   [88]   Postel, J. and J. Reynolds, "Telnet Status Option", RFC 859,
          Information Sciences Institute, May 1983.

Assigned Numbers                                                 RFC 943

   [89]   Postel, J. and J. Reynolds, "Telnet Suppress Go Ahead Option",
          RFC 858, Information Sciences Institute, May 1983.

   [90]   Postel, J. and J. Reynolds, "Telnet Timing Mark Option",
          RFC 860, Information Sciences Institute, May 1983.

   [91]   Reed, D., "Protocols for the LCS Network", Local Network Note
          3, Laboratory for Computer Science, MIT, November 1976.

   [92]   Reynolds, J. and J. Postel, "Official ARPA-Internet
          Protocols", RFC 944, Information Sciences Institute,
          April 1985.

   [93]   Rosen, E., "Exterior Gateway Protocol" RFC 827, Bolt Beranek
          and Newman, October 1982.

   [94]   Saltzer, J. H., "Design of a Ten-megabit/sec Token Ring
          Network", MIT Laboratory for Computer Science Technical

   [95]   Scott, W. S., "2.9bsd/TIS Network Implementation", Lawrence
          Livermore National Laboratory, September 1984.

   [96]   Seamonson, L. J., and E. C. Rosen, "STUB" Exterior Gateway
          Protocol", RFC 888, BBN Communications Corporation,
          January 1984.

   [97]   Shuttleworth, B., "A Documentary of MFENet, a National
          Computer Network", UCRL-52317, Lawrence Livermore Labs,
          Livermore, California, June 1977.

   [98]   Silverman, S., "Output Marking Telnet Option", RFC 933, MITRE,
          January 1985.

   [99]   Skelton, A., S. Holmgren, and D. Wood, "The MITRE Cablenet
          Project", IEN 96, April 1979.

   [100]  Sollins, K., "The TFTP Protocol (Revision 2)", RFC 783,
          MIT/LCS, June 1981.

   [101]  Solomon, M., L. Landweber, and D. Neuhengen, "The CSNET Name
          Server", Computer Networks, v.6, n.3, pp. 161-172, July 1982.

   [102]  Solomon, M., and E. Wimmers, "Telnet Terminal Type Option",
          RFC 930, Supercedes RFC 884, University of Wisconsin, Madison,
          January 1985.

Assigned Numbers                                                 RFC 943

   [103]  Sproull, R., and E. Thomas, "A Networks Graphics Protocol",
          NIC 24308, August 1974.

   [104]  StJohns, M., "Authentication Service", RFC 912, TPSC,
          September 1984.

   [105]  Tappan, D. C., "The CRONUS Virtual Local Network", RFC 824,
          Bolt Beranek and Newman, August 1982.

   [106]  "The Ethernet, a Local Area Network: Data Link Layer and
          Physical Layer Specification", AA-K759B-TK, Digital Equipment
          Corporation, Maynard, MA.

   [107]  "The Ethernet - A Local Area Network", Version 1.0, Digital
          Equipment Corporation, Intel Corporation, Xerox Corporation,
          September 1980.

   [108]  "The Ethernet, A Local Area Network: Data Link Layer and
          Physical Layer Specifications", Digital, Intel and Xerox,
          November 1982.

   [109]  The High Level Protocol Group, "A Network Independent File
          Transfer Protocol",  INWG Protocol Note 86, December 1977.

   [110]  Tovar, "Telnet Extended ASCII Option", RFC 698, Stanford
          University-AI, July 1975.

   [111]  Velten, D., R. Hinden, and J. Sax, "Reliable Data Protocol",
          RFC 908, BBN Communications Corporation, July 1984.

   [112]  Whelan, D., "The Caltech Computer Science Department Network",
          5052:DF:82, Caltech Computer Science Department, 1982.

   [113]  XEROX, "The Ethernet, A Local Area Network: Data Link Layer
          and Physical Layer Specification", X3T51/80-50, Xerox
          Corporation, Stamford, CT., October 1980.

   [114]  XEROX, "Internet Transport Protocols",  XSIS 028112, Xerox
          Corporation, Stamford, Connecticut, December 1981.

   [115]  BBN, "User Manual for TAC User Database Tool", Bolt Beranek
          and Newman, September 1984.

   [116]  International Standards Organization, "Protocol for Providing
          the Connectionless-Mode Network Services", RFC 926, ISO,
          December 1984.

Assigned Numbers                                                 RFC 943

   [117]  Lapsley, P., and B. Kantor, "USENET News Transfer Protocol",
          Draft Memo, April 1985.

Assigned Numbers                                                 RFC 943


   [AB13]    Alison Brown        CORNELL   alison@CORNELL.ARPA
   [AB20]    Art Berggreen       ACC       ART@ACC.ARPA
   [AD22]    Arlene DesJardins   CIT       arlene@CIT-20.ARPA
   [AG22]    Alfred Ganz         YALE      GANZ@YALE.ARPA
   [AGM]     Andy Malis          BBN       Malis@BBN-UNIX.ARPA
   [AKC]     Albert Cheng        UIUC      acheng.uiuc@CSNET-RELAY.ARPA
   [AL6]     Alexis Layton       CCA       alex@CCA-UNIX.ARPA
   [APS]     Anita Skelton       MITRE     skelton@MITRE.ARPA
   [AP]      Alan Parker         NRL       parker@NRL-CSS.ARPA
   [AV]      Al Vezza            MIT       AV@MIT-XX.ARPA
   [AW9]     Albert Wong         NPS       AWong@USC-ISI.ARPA
   [AXG]     Atul Garg           HP        ---none---
   [AY5]     Akiharu Yasuda      DODIIS    dia@PAXRV-NES.ARPA
   [BA4]     Brian Anderson      BBN       baanders@BBNCCQ.ARPA
   [BC14]    Robert Cattani      COLUMBIA  Cattani@COLUMBIA-20.ARPA
   [BG5]     Bob Gilligan        SRI       Gilligan@SRI-KL.ARPA
   [BIM]     Benson I. Margulies HONEYWELL Margulies@CISL.ARPA
   [BJN1]    Bruce Nemnich       TMC       BJN@MIT-MC.ARPA
   [BML]     Barry Leiner        ARPA      Leiner@USC-ISIA.ARPA
   [BN7]     Bich T. Nguyen      SRI       btn@SRI-TSC.ARPA
   [BN9]     Bill Nesheim        CORNELL   bill@CORNELL.ARPA
   [BP17]    Bobbi Phillips      SRI       bobbi@SRI-TSC.ARPA
   [BXA]     Bobby W. Allen      YPG       WYMER@OFFICE.ARPA
   [CAK]     Chris Kent          PURDUE    Kent@PURDUE.ARPA
   [CBD]     Clive B. Dawson     MCC       Clive@MCC.ARPA
   [CBP]     Brian Pinkerton     WISCONSON Brian@WISC-RSCH.ARPA
   [CC2]     Chase Cotton        UDEL      Cotton@UDEL-EE.ARPA
   [CH2]     Charles Hornig      SYMBOLICS Hornig@MIT-MC.ARPA
   [CJW2]    Cliff Weinstein     LL        cjw@LL-11.ARPA
   [CLH3]    Charles Hedrick     RUTGERS   Hedrick@RUTGERS.ARPA
   [CMR]     Craig Rogers        ISI       Rogers@USC-ISIB.ARPA
   [CP10]    Craig Partridge     BBN       craig@BBN-UNIX.ARPA
   [CXH]     Chien Y. Huang      PRINCETON
   [CXL]     Clifford A. Lynch   BERKELEY
   [DAM1]    David A. Mosher     BERKELEY  Mosher@UCB-ARPA.ARPA
   [DCP1]    David Plummer       MIT       DCP@MIT-MC.ARPA
   [DT15]    Dan Tappan          BBN       Tappan@BBNG.ARPA
   [DDC2]    Dave Clark          MIT-LCS   Clark@MIT-MULTICS.ARPA
   [DG28]    David L. Gehrt      RIACS     Dave@RIACS.ARPA
   [DH17]    Douglas Hirsch      BBN       hirsch@BBN-UNIX.ARPA
   [DHH]     Doug Hunt           BBN       DHunt@BBN-UNIX.ARPA
   [DJF]     David J. Farber     ROCHESTER Farber@ROCHESTER.ARPA
   [DJV1]    Darrel J. Van Buer  SDC       vanbuer@ISI-VAXA.ARPA
   [DK2]     Dean B. Krafft      CORNELL   Dean@CORNELL.ARPA

Assigned Numbers                                                 RFC 943

   [DLM1]    David Mills         LINKABIT  Mills@USC-ISID.ARPA
   [DM11]    Dale McNeill        BBN       mcneill@BBN-UNIX.ARPA
   [DM27]    Doug McCallum       NBI       nbires!mccallum@UCB-ARPA.ARPA
   [DPR]     David Reed          MIT-LCS   DPR@MIT-XX.ARPA
   [DRP]     Don Provan          LLNL      Provan@LLL-MFE.ARPA
   [DSW]     Dan Whelan          CALTECH   Dan@CIT-20.ARPA
   [DXD]     Dennis J.W. Dube    VIA SYSTEMS ---none---
   [DXG]     David Goldberg      SMI       sun!dg@UCB-ARPA.ARPA
   [EAK1]    Earl Killian        LLL       EAK@MIT-MC.ARPA
   [EBM]     Eliot Moss          MIT       EBM@MIT-XX.ARPA
   [EC5]     Ed Cain             DCEC      cain@EDN-UNIX.ARPA
   [EF5]     Ed Franceschini     NYU       Franceschini@NYU.ARPA
   [EHP]     Ed Perry            SRI       Perry@SRI-KL.ARPA
   [FAS]     Fred Segovich       COMPION   fred@COMPION-VMS.ARPA
   [FLM2]    F. Lee Maybaum      MILNET    Maybaum@DDN1
   [GEOF]    Geoff Goodfellow    SRI       Geoff@DARCOM-KA.ARPA
   [GC]      Graham Campbell     BNL       gc@BNL.ARPA
   [GH29]    Gregory Hidley      UCSD      hidley@NOSC.ARPA
   [GIH]     Glenn I. Hastie II  SRI       Hastie@SRI-SPAM.ARPA
   [GLH5]    Gavin L. Hamphill   DREA      Hemphill@DREA-XX.ARPA
   [GP10]    George Pavel        LLNL      liaison@LLL-TIS.ARPA
   [GXL]     Guillermo A. Loyola IBM      Loyola%ibm-sj@CSNET-RELAY.ARPA
   [HA]      Howard Alt          AIDS      alt@AIDS-UNIX.ARPA
   [HCF2]    Harry Forsdick      BBN       Forsdick@BBNG.ARPA
   [HDC1]    Horst Clausen       DFVLR     Clausen@USC-ISID.ARPA
   [HDW2]    Howard Wactlar      CMU       Wactlar@CMU-CS-A.ARPA
   [HGM]     Hallam Murray       PARC      Murray.PA@PARC-MAXC.ARPA
   [HM]      Hank Magnuski       ---       JOSE@PARC-MAXC.ARPA
   [JA1]     Jules P. Aronson    NLM       Aronson@NLM-MCS.ARPA
   [JAKE]    Jake Feinler        SRI       Feinler@SRI-KL.ARPA
   [JAW3]    Jil Westcott        BBN       Westcott@BBNF.ARPA
   [JBP]     Jon Postel          ISI       Postel@USC-ISIF.ARPA
   [JBW1]    Joseph Walters, Jr. BBN       JWalters@BBN-UNIX.ARPA
   [JC11]    Jim Clifford        LANL      jrc@LANL.ARPA
   [JCM]     Jeff Mogul          STANFORD  Mogul@SU-SCORE.ARPA
   [JD21]    Jonathan Dreyer     BBN       JDreyer@BBN-UNIX.ARPA
   [JDG]     Jim Guyton          RAND      guyton@RAND-UNIX.ARPA
   [JEM]     Jim Mathis          SRI       Mathis@SRI-KL.ARPA
   [JFH2]    Jack Haverty        BBN       Haverty@BBN-UNIX.ARPA
   [JFW]     Jon F. Wilkes       STC       Wilkes@MIT-MULTICS.ARPA
   [JGH]     Jim Herman          BBN       Herman@BBN-UNIX.ARPA
   [JG46]    Jonathan Goodman    YALE      Goodman@YALE.ARPA
   [JKR1]    Joyce K. Reynolds   ISI       JKREYNOLDS@USC-ISIF.ARPA
   [JL15]    Jay Lepreau         UTAH      Lepreau@UTAH-20.ARPA
   [JN2]     Jose Nabielsky      MITRE     jnd@MITRE.ARPA
   [JO5]     John O'Donnell      YALE      ODonnell@YALE.ARPA
   [JR17]    John L. Robinson    CANADA    DREO-CRC@USC-ISID.ARPA

Assigned Numbers                                                 RFC 943

   [JRM1]    John Mullen         MITRE     Mullen@MITRE.ARPA
   [JRS8]    Jeffrey R. Schwab   PURDUE    jrs@PURDUE.ARPA
   [JS38]    Joseph Sventek      LBL       j@LBL-CSAM.ARPA
   [JSG5]    Jon Goodridge       BBN       jsg@BBN-UNIX.ARPA
   [JSQ1]    John S. Quarterman  UT        jsq@UT-SALLY.ARPA
   [JWF]     Jim Forgie          LL        Forgie@BBNC.ARPA
   [JWO1]    James W. O'Toole    UMD       james@MARYLAND.ARPA
   [JXB]     John Blair          NEOCM
   [JXD]     Jean Darling        WISC-MADI Darling@UWISC.ARPA
   [JXR]     John Rhodes         LOGNET    JRhodes@Lognet2.ARPA
   [KCS1]    Kevin C. Smallwood  PURDUE    kcs@PURDUE.ARPA
   [KLH]     Ken Harrenstien     SRI       KLH@NIC.ARPA
   [KRS]     Karen Sollins       MIT       Sollins@MIT-XX.ARPA
   [KTP]     Kenneth T. Pogran   BBN       Pogran@BBN-UNIX.ARPA
   [KWP]     Kevin W. Paetzold   DEC       Paetzold@DEC-MARLBORO.ARPA
   [KXK]     Kevin O'Keefe       HAZELTINE Hazeltine@USC-ISIA.ARPA
   [LB1]     Liudvikas Bukys     ROCHESTER Bukys@ROCHESTER.ARPA
   [LCN]     Lou Nelson          AEROSPACE Lou@AEROSPACE.ARPA
   [LCS]     Lou Schreier        SRI       Schreier@USC-ISID.ARPA
   [LH2]     Lincoln Hu          COLUMBIA  Hu@COLUMBIA-20.ARPA
   [LOU]     Lou Salkind         NYU       Salkind@NYU.ARPA
   [LM8]     Liza Martin         MIT-LCS   Martin@MIT-XX.ARPA
   [LRB]     Larry Bierma        NPRDC     Bierma@NPRDC.ARPA
   [MA]      Mike Accetta        CMU       Accetta@CMU-CS-A.ARPA
   [MAB4]    Mark Brown          USC       Mark@USC-ECLB.ARPA
   [MAE]     Marc A. Elvy        HARVARD   Elvy@HARVARD.ARPA
   [MBG]     Michael Greenwald   MIT-LCS   Greenwald@MIT-MULTICS.ARPA
   [MB]      Michael Brescia     BBN       Brescia@BBN-UNIX.ARPA
   [MB31]    Michael BereschinskyUSARMY    Bereschinsky@USC-ISID.ARPA
   [MCA1]    Mary C. Akers       FISG      MCAkers@TPSC-T.ARPA
   [MDC]     Martin D. Connor    MIT AI    Marty@MIT-MC.ARPA
   [MF31]    Martin J. Fouts     NASA-AMES nep.fouts@AMES-AMELIA.ARPA
   [MH12]    Mark Horton         ATT       mark@UCB-ARPA.ARPA
   [MHS1]    Marvin Solomon      WISC      Solomon@UWISC.ARPA
   [MJM2]    Mike Muuss          BRL       Mike@BRL.ARPA
   [MK17]    Mike Karels         BERKELEY  Karels@UCB-ARPA.ARPA
   [MKL1]    Mark Lottor         MIT       MKL@MIT-XX.ARPA
   [MLC]     Mike Corrigan       DDN       Corrigan@DDN1.ARPA
   [MO2]     Michael O'Brien     RAND      OBrien@RAND-UNIX.ARPA
   [MO14]    Michael O'Donnel    JHU       Odonnel%jhu@CSNET-RELAY.ARPA
   [MRC]     Mark Crispin        STANFORD  Admin.MRC@SU-SCORE.ARPA
   [MS9]     Martin Schoffstall  CADMUS    cadmus!schoff@SEISMO.ARPA
   [MSM1]    Milo S. Medin       AMES      medin@ames-vmsb@SEISMO.ARPA
   [MTR]     Marshall Rose       IRVINE    MRose.UCI@RAND-RELAY.ARPA
   [MXK]     Michael Kazar       CMU       Mike.Kazar@CMU-CS-K.ARPA
   [MXM]     Marc M. Meilleur    COINS     COINS@USC-ISI.ARPA
   [MXP]     Michael K. Peterson HUGHES    scgvaxd!mkp@CIT-VAX.ARPA

Assigned Numbers                                                 RFC 943

   [MXP1]    Mark C. Powers      NSWC      mpowers@nswc-g.ARPA
   [MXR]     Mark A. Rosenstein  MIT       mar@MIT-BORAX.ARPA
   [MXS]     Marc Shapiro        INRIA     Shapiro@CMU-CS-C.ARPA
   [NC3]     J. Noel Chiappa     MIT       JNC@MIT-XX.ARPA
   [NMM]     Mike Minnich        UDELEE    MMinnich@UDEL-EE.ARPA
   [NXK]     Neil Katin          HP        hpda.neil@UCB-ARPA.ARPA
   [PA5]     Philip Almquist     STANFORD  Almquist@SU-SCORE.ARPA
   [PAM6]    Paul McNabb         RICE      pam@PURDUE.ARPA
   [PFS2]    Paul Sass           CECOM     Sass@USC-ISID.ARPA
   [PG3]     Phill Gross         LINKABIT  gross@DCN7.ARPA
   [PGM]     Paul G. Milazzo     RICE      Milazzo@RICE.ARPA
   [PHD1]    Pieter Ditmars      BBN       pditmars@BBN-UNIX.ARPA
   [PK]      Peter Kirstein      UCL       Kirstein@USC-ISIA.ARPA
   [PL4]     Phil Lapsley        BERKELEY  phil%ucbeast@UCB-ARPA.ARPA
   [PM1]     Paul Mockapetris    ISI       Mockapetris@USC-ISIF.ARPA
   [PM4]     Paul Martin         SRI       PMartin@SRI-AI.ARPA
   [PS3]     Paal Spilling       NDRE      Paal@NTA-VAX.ARPA
   [PXA]     Phillip G. Apley    BITSTREAM PGA@MIT-OZ.ARPA
   [PXB]     Pat Boyle           UBC       boyle.ubc@CSNET-RELAY.ARPA
   [PXK]     Philip R. Karn, Jr. BCR       allegra!karn@UCB-ARPA.ARPA
   [PXM]     Pat Marques         NSRDC     marques@DTRC.ARPA
   [PXN]     Peter Nellessen     SIEMENS   crtvax!pn@CMU-CS-SPICE.ARPA
   [RA11]    Rick Adams          CCI       rlgvax!ra@SEISMO.ARPA
   [RB6]     Richard Bisbey      ISI       Bisbey@USC-ISIB.ARPA
   [RBN1]    Ronald Natalie, Jr. BRL       ron@BRL-TGR.ARPA
   [RBW]     Richard B. Wales    UCLA      wales@UCLA-LOCUS.ARPA
   [RC7]     Robert Cole         UCL       robert@UCL-CS.ARPA
   [RDB2]    Robert Bressler     BBN       Bressler@BBN-UNIX.ARPA
   [RDR4]    Dennis Rockwell     BBN       DRockwell@BBN-UNIX.ARPA
   [REK2]    Robert Kahn         ARPA      Kahn@USC-ISIA.ARPA
   [RF1]     Randy Frank         UTAH      Frank@UTAH-20.ARPA
   [RFD1]    Robert F. Donnelly  ARDC      donnelly@ARDC.ARPA
   [RH6]     Robert Hinden       BBN       Hinden@BBN-UNIX.ARPA
   [RH60]    Roger Hale          MIT       Network%MIT-BUGS@MIT-MC.ARPA
   [RHT]     Robert Thomas       BBN       BThomas@BBNG.ARPA
   [RK1]     Richard Kovalcik    HONEYWELL Kovalcik@MIT-MULTICS.ARPA
   [RKJ2]    Richard Johnsson    DEC       johnsson@DECWRL.ARPA
   [RLB1]    Bob Brown           USRA      rlb@AMES-VMSB.ARPA
   [RLB3]    Ronald L. Broersma  NOSC      Ron@NOSC.ARPA
   [RLH2]    Ronald L. Hartung   NSWC      ron@NSWC-WO.ARPA
   [RLS6]    Ronald L. Smith     COINS     COINS@USC-ISIA.ARPA
   [RNM1]    Neil MacKenzie      RSRE      T45@USC-ISID.ARPA
   [RR2]     Raleigh Romine      TELEDYNE  romine@SEISMO.ARPA
   [RR18]    Ron Reisor          UDEL      ron.udel-cc-relay@UDEL.ARPA
   [RS23]    Russel Sandberg     WISC      root@UWISC.ARPA
   [RSM1]    Robert S. Miles     NRTC      RSMiles@USC-ECL.ARPA
   [RTB]     Bob Braden          UCLA      Braden@USC-ISIA.ARPA
   [RWS4]    Robert W. Scheifler ARGUS     RWS@MIT-XX.ARPA

Assigned Numbers                                                 RFC 943

   [RXB]     Rafael Bracho       SPAR      RXB@SRI-KL.ARPA
   [RXG]     Roger L. Gulbranson UMINN  ihnp4!umn-cs!roger@UCB-ARPA.ARPA
   [RXM]     Robert Myhill       BBN       Myhill@BBNCCS.ARPA
   [SA1]     Sten Andler         ARPA     andler.ibm-sj@CSNET-RELAY.ARPA
   [SC3]     Steve Casner        ISI       Casner@USC-ISIB.ARPA
   [SGC]     Steve Chipman       BBN       Chipman@BBNA.ARPA
   [SK]      Steve Kille         UCL       UKSAT@USC-ISID.ARPA
   [SM6]     Sean McLinden       DSL       SMcLinden@CADRE.ARPA
   [SMF]     Steven M. Feldman   TYMNET    feldman%ucbarpa@UCB-ARPA.ARPA
   [SXA]     Skip Addison        GATECH
   [SXB]     Steve Byrne         TARTAN    Byrne@CMU-CS-C.ARPA
   [SB28]    Scott Bradner       HARVARD   bradner@HARVARD.ARPA
   [SXM]     Scott Marcus        SPARTACUS ---none---
   [SXS]     Steve Silverman     MITRE     Blankert@MITRE-GATEWAY.ARPA
   [TBS]     Claude S. Steffey   WSMR      csteffey@WSMR70A.ARPA
   [TC4]     Tony Cincotta       DTNSRDC   tony@NALCON.ARPA
   [TF6]     Thomas Ferrin       UCSF      ucsfcgl!tef@UCB-ARPA.ARPA
   [TW11]    Tom Wadlow          LLL       TAW@S1-A.ARPA
   [TXM]     Trudy Miller        ACC       Trudy@ACC.ARPA
   [TXN]     Todd Nugent         U CHICAGO Nugent@ANL-MCS.ARPA
   [UXB]     Ulf Bilting         CHALMERS  bilting@PURDUE.ARPA
   [WG]      Wayne Graves        LBL       wayne@LBL-CSAM.ARPA
   [WF3]     William E. Fink     NRLRCD    bill@nrl.ARPA
   [WIM]     William Macgregor   BBN       macg@BBN.ARPA
   [WNJ]     Bill Joy            SMI       sun!wnj@UCB-ARPA.ARPA
   [WXL]     William Lampeter    UR        bill@ROCHESTER.ARPA
   [ZSU]     Zaw-Sing Su         SRI       ZSu@SRI-TSC.ARPA

Assigned Numbers                                                 RFC 943
Appendix A

                               APPENDIX A

   Network Numbers

      The network numbers in class A, B, and C network addresses are
      allocated among Research, Defense, Government (Non-Defense) and
      Commercial uses.

      Class A (highest-order bit 0)

         Research allocation:             8
         Defense allocation:             24
         Government allocation:          24
         Commercial allocation:          94
         Reserved Addresses:   (0, 127)
         Total                          128

      Class B (highest-order bits 1-0)

         Research allocation:          1024
         Defense allocation:           3072
         Government allocation:        3072
         Commercial allocation:       12286
         Reserved Addresses: (0, 16383)
         Total                        16384

      Class C (highest-order bits 1-1-0)

         Research allocation:           65536
         Defense allocation:           458725
         Government allocation:        458725
         Commercial allocation:       1572862
         Reserved Addresses: (0, 2097151)
         Total                        2097152

      Class D (highest-order bits 1-1-1)

         All addresses in this class are reserved for future use.

      Within the Research community, network identifiers will only be
      granted to applicants who show evidence that they are acquiring
      standard Bolt Beranek and Newman gateway software or have
      implemented or are acquiring a gateway meeting the Exterior
      Gateway Protocol requirements.  Acquisition of the Berkeley BSD
      4.2 UNIX software might be considered evidence of the latter.

Assigned Numbers                                                 RFC 943
Appendix A

      Experimental networks which later become operational need not be
      renumbered.  Rather, the identifiers could be moved from Research
      to Defense, Government or Commercial status.  Thus, network
      identifiers may change state among Research, Defense, Government
      and Commercial, but the number of identifiers allocated to each
      use must remain within the limits indicated above.  To make
      possible this fluid assignment, the network identifier spaces are
      not allocated by simple partition, but rather by specific

   Protocol Identifiers

      These assignments are shared by the four communities.

   Port Numbers

      These assignments are shared by the four communities.

   ARPANET Link Numbers

      These assignments are shared by the four communities.

   IP Version Numbers

      These assignments are shared by the four communities.

   TCP, IP and Telnet Option Identifiers

      These assignments are shared by the four communities.


      Joyce Reynolds is the coordinator for all number assignments.


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