Network Working Group J. Reynolds Request for Comments: 923 J. Postel ISI Obsoletes RFCs: 900, 870, 820, October 1984 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. Introduction 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 ARPA mail: JKREYNOLDS@USC-ISIF.ARPA 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" [33] or in the old "ARPANET Protocol Handbook" [34] 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" [89]. 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. Reynolds & Postel [Page 1] Assigned Numbers RFC 923 Network Numbers ASSIGNED NETWORK NUMBERS The network numbers listed here are used as internet addresses by the Internet Protocol (IP) [33,77]. 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 reserved. Reynolds & Postel [Page 2] Assigned Numbers RFC 923 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 010.002.000.052, or 10.2.0.52. 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 identification). 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 number. 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 128.9.255.255 could be Reynolds & Postel [Page 3] Assigned Numbers RFC 923 Network Numbers interpreted as meaning all hosts on the network 128.9. Or, the address 0.0.0.37 could be interpreted as meaning host 37 on this network. 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 [7,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 [7,34,REK2] D 011.rrr.rrr.rrr DODIIS DoD INTEL INFO SYS [AY7] C 012.rrr.rrr.rrr ATT ATT, Bell Labs [MH13] C 014.rrr.rrr.rrr PDN Public Data Network [REK4] R 018.rrr.rrr.rrr T MIT-TEMP MIT Network [15,88,DDC2] 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 [7,DHH] 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] 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-021.rrr.rrr.rrr Unassigned [JBP] 025.rrr.rrr.rrr Unassigned [JBP] 029.rrr.rrr.rrr-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] Reynolds & Postel [Page 4] Assigned Numbers RFC 923 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 [59,DLM1] R 128.005.rrr.rrr FORDNET FORD DCNET [59,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 [59,DLM1] R 128.009.rrr.rrr ISI-NET USC-ISI Local Network [CMR] R 128.010.rrr.rrr PURDUE-CS Purdue Computer Science [CAK] R 128.011.rrr.rrr BBN-CRONUS BBN DOS Project [55,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 [7,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 [94,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 [46,47,RK1] R 128.036.rrr.rrr YALE-NET YALE NET [108,JO5] D 128.037.rrr.rrr YPG-NET Yuma Proving Grounds [7,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 [59,108,PGM] R 128.043.rrr.rrr CRANET Canada REF ARPANET [7,JR17] Reynolds & Postel [Page 5] Assigned Numbers RFC 923 Network Numbers D 128.044.rrr.rrr WSMR-NET White Sands Network [TBS] C 128.045.rrr.rrr DEC-WRL-NET DEC WRL Network [108,RKJ2] 128.046.rrr.rrr Unassigned Unassigned [JBP] D 128.047.rrr.rrr TACTNET Tactical Packet Net [6,KTP] C*128.048.rrr.rrr UCDLA-NET UCDLA MELVYL Network [7,CXL] R 128.049.rrr.rrr NOSC-ETHER NOSC Ethernet [108,RLB3] G 128.050.rrr.rrr COINS Network 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 [108,MDC] R 128.053.rrr.rrr SAC-PR-2 SAC PRNET Number 2 [BG5] R 128.054.rrr.rrr UCSD UC San Diego Network [108,GH29] 128.055.rrr.rrr-128.063.rrr.rrr Unassigned [JBP] R 128.064.rrr.rrr-128.079.rrr.rrr Net Dynamics Exp [ZSU] 128.080.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-192.003.255.rrr BBN local networks [SGC] R*192.004.000.rrr-192.004.255.rrr Bellcore-Net [108,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 [101,KWP] R 192.005.006.rrr DEC-MRRAD DEC Marlboro Developmt [101,KWP] R 192.005.007.rrr CIT-CS-NET Caltech-CS-Net [107,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] 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 [108,FAS] R 192.005.014.rrr RAND-NET RAND Network [108,JDG] R 192.005.015.rrr NYU-NET NYU Network [EF5] R 192.005.016.rrr LANL-LAND Los Alamos Dev LAN [108,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 [7,MJM2] D 192.005.022.rrr BRLNET2 BRLNET2 [7,MJM2] D 192.005.023.rrr BRLNET3 BRLNET3 [7,MJM2] Reynolds & Postel [Page 6] Assigned Numbers RFC 923 Network Numbers D 192.005.024.rrr BRLNET4 BRLNET4 [7,MJM2] D 192.005.025.rrr BRLNET5 BRLNET5 [7,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 [NM] R 192.005.029.rrr RSRE-ACC RSRE-ACC [NM] R 192.005.030.rrr RSRE-PR RSRE-PR [NM] R*192.005.031.rrr SIEMENS-NET Siemens Research Network [PXN] R 192.005.032.rrr CISLTESTNET2 Honeywell [46,47,RK1] R 192.005.033.rrr CISLTESTNET3 Honeywell [27,28,RK1] R 192.005.034.rrr CISLTESTNET4 Honeywell [27,28,RK1] R 192.005.035.rrr RIACS USRA [108,RLB1] R 192.005.036.rrr CORNELL-CS CORNELL CS Research [108,DK2] R 192.005.037.rrr UR-CS-NET U of R CS 3Mb Net [58,LB1] R 192.005.038.rrr SRI-C3ETHER SRI-AITAD C3ETHERNET [108,BG5] R 192.005.039.rrr UDEL-EECIS Udel EECIS LAN [102,CC2] R 192.005.040.rrr PUCC-NET-A PURDUE Comp Cntr Net [JRS8] D 192.005.041.rrr WISLAN WIS Research LAN [94,JRM1] D 192.005.042.rrr AFDSC-HYPER AFDSC Hypernet [MCSJ] R 192.005.043.rrr CUCSNET Columbia CS Net [108,LH2] R 192.005.044.rrr Farber-PC-Net Farber PC Network [DJF] R 192.005.045.rrr AIDS-NET AI&DS Network [108,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-IL Purdue CS IL Ethernet [108,CAK] R 192.005.049.rrr UCSF Univ of Calif, San Fran[102,TF6] R 192.005.050.rrr CTH-CS-NET Chalmers CSN Net [102,UXB] R 192.005.051.rrr Theorynet Cornell Theory Center [108,AB13] R 192.005.052.rrr NLM-ETHER NLM-LHNCBC-ETHERNET [77,JA1] R 192.005.053.rrr UR-CS-ETHER U of R CS 10Mb Net [58,LB1] R 192.005.054.rrr AERO-A6 Aerospace [2,LCN] R*192.005.055.rrr UCLA-CECS UCLA-CECS Network [108,RBW] C 192.005.056.rrr TARTAN-NET Tartan Labs [SXB] R 192.005.057.rrr UDEL-CC UDEL Comp Center [102,RR18] R 192.005.058.rrr CSNET-PDN CSNET X.25 Network [52,RDR4] 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 [101,MF31] R 192.005.065.rrr NPRDC-Ether NPRDC TRCF Ethernet [LRB] R 192.005.066.rrr HARV-NET Harvard Comp Sci Net [SXB1] R 192.005.067.rrr CECOM-ETHER CECOM ADDCOMPE ETHER [102,GIH] R 192.005.068.rrr AERO-130 AEROSPACE-130 [LCN] R 192.005.069.rrr UIUC-NET Univ of IL at Urbana [108,AXC] G 192.005.070.rrr CELAN COINS Exper. LAN [MXM] R 192.005.071.rrr SAC-ETHER SAC C3 Ethernet [108,BG5] R*192.005.072.rrr-192.005.087.rrr U Chicago [TXN] Reynolds & Postel [Page 7] Assigned Numbers RFC 923 Network Numbers R 192.005.088.rrr YALE-EE-NET YALE-EE-NET [108,AG22] R 192.005.089.rrr UTEXAS-NET U. Texas Austin Net [108,JSQ1] R 192.005.090.rrr HARV-ETHER Harvard CS Ethernet [SXB1] R 192.005.091.rrr PURDUE-ECN1 Purdue ECN [30,49,GG11] R 192.005.092.rrr BRAGG-ETHER SRI Bragg Ether [103,GIH] R 192.005.093.rrr SRI-DEMO SRI Ether Demo [103,GIH] R*192.005.094.rrr SDCRDCF-10MB SDC R&D primary net [108,DJV1] R*192.005.095.rrr SDCRDCF-3MB SDC R&D old net [58,DJV1] R*192.005.096.rrr UBC-CS-NET UBC Comp Sci Net [108,PXB] R*192.005.097.rrr UCLA-CS-LNI UCLA CS LNI Network [RBW] R*192.005.098.rrr UCLA-PIC UCLA PIC Network [108,RBW] R 192.005.099.rrr SPACENET S-1 Workstation Network[108,TXW] R 192.005.100.rrr PURDUE-ECN2 Purdue ECN [30,49,GG11] 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 TMC-INET Thinking Machines [108,BJN1] R 192.005.105.rrr CCA-POND CCA Ethernet1 (POND) [108,AL6] C*192.005.106.rrr BITSTREAM Bitstream Type Foundry [108,PXA] R*192.005.107.rrr PASC-ETHER IBM PASC Ethernet [108,GXL] R*192.005.108.rrr PASC-BB IBM PASC Broadband [50,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 [108,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 [108,AMS1] C*192.012.004.rrr SCG-NET Hughes SCG Net [108,MXP] R 192.012.005.rrr AIC-LISPMS SRI-AIC-LispMachNet [108,PM4] R 192.012.006.rrr NPS-C2 NPS-C2 [108,AW9] R 192.012.007.rrr NYU-CS-ETHER NYU CompSci Ethernet [108,LOU] D 192.012.008.rrr PICANET1 Picatinny Arsenal LAN1[108,RFD1] R 192.012.009.rrr CADRE-NET Decision Systems Lab [SM6] R 192.012.010.rrr CORNELL-ENG Cornell-Engineering [108,BN9] R 192.012.011.rrr MIT-36 MIT Building 36 [108,RH60] R 192.012.012.rrr WISC-ETHER Wisconsin Ether Net [108,CBP] R 192.012.013.rrr JHU-NET1 JHU-NET1 [108,MO14] R 192.012.014.rrr JHU-NET2 JHU-NET2 [108,MO14] R 192.012.015.rrr BROOKNET BNL Brooknet III [108,GC] R 192.012.016.rrr PRMNET SRI-SURAN-EN [108,BP17] G 192.012.017.rrr LLL-TIS-NET LLL-TIS-NET [101,105,GP10] Reynolds & Postel [Page 8] Assigned Numbers RFC 923 Network Numbers R 192.012.018.rrr CIT-CS-10NET Caltech 10Meg EtherNet[107,AD22] R 192.012.019.rrr CIT-NET Caltech Campus Net [107,AD22] R 192.012.020.rrr CIT-SUN-NET Caltech Sun Net [107,AD22] R 192.012.021.rrr CIT-PHYSCOMP Caltech Phys Comp Net [107,AD22] R 192.012.022.rrr UTCSRES UTCS Net Research [108,JSQ1] R 192.012.023.rrr UTCSTTY UTCS TTY Kludgenet [108,JSQ1] R 192.012.024.rrr MICANET MITRE (Experimental) [JN2] R 192.012.025.rrr CSS-GRAMINAE CSS Workstation Net [53,RR2] R 192.012.026.rrr BBN-NETR Net-R Testbed at BBN [91,CP10] R 192.012.027.rrr UR-LASER UR Laser Energetics [108,WXL] 192.012.028.rrr-192.012.255.rrr Unassigned [JBP] D 192.013.000.rrr-192.014.255.rrr DODIIS Subnetworks [AY5] 192.015.000.rrr-223.255.254.rrr Unassigned [JBP] 223.255.255.rrr Reserved [JBP] Other Reserved Internet Addresses * Internet Address Name Network References - ---------------- ---- ------- ---------- 224.000.000.000-255.255.255.255 Reserved [JBP] Reynolds & Postel [Page 9] Assigned Numbers RFC 923 Network Numbers Network Totals Assigned for the ARPA-Internet and the DDN-Internet Class A B C Total Research 6 53 854 913 Defense 5 12 523 540 Government 0 2 2 4 Commercial 2 1 3 6 Total 13 68 1382 1463 Allocated for Internet and Independent Uses Class A B C Total Research 6 53 1139 1198 Defense 5 12 523 540 Government 0 2 2 4 Commercial 2 2 1545 1549 Total 13 69 3209 3291 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 Reynolds & Postel [Page 10] Assigned Numbers RFC 923 Version Numbers ASSIGNED VERSION NUMBERS In the Internet Protocol (IP) [33,77] 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 [31,71,JBP] 5 ST ST Datagram Mode [34,JWF] 6-14 Unassigned [JBP] 15 Reserved [JBP] Reynolds & Postel [Page 11] Assigned Numbers RFC 923 Protocol Numbers ASSIGNED PROTOCOL NUMBERS In the Internet Protocol (IP) [33,77] there is a field, called Protocol, to identify the the next level protocol. This is an 8 bit field. Assigned Internet Protocol Numbers Decimal Keyword Protocol References ------- ------- -------- ---------- 0 Reserved [JBP] 1 ICMP Internet Control Message [69,JBP] 2 Unassigned [JBP] 3 GGP Gateway-to-Gateway [45,MB] 4 Unassigned [JBP] 5 ST Stream [37,JWF] 6 TCP Transmission Control [33,78,JBP] 7 UCL UCL [PK] 8 EGP Exterior Gateway Protocol [93,DLM1] 9 IGP any private interior gateway [JBP] 10 BBN-RCC-MON BBN RCC Monitoring [SGC] 11 NVP-II Network Voice Protocol [16,SC3] 12 PUP PUP [11,HGM] 13 ARGUS ARGUS [RWS4] 14 EMCON EMCON [BN7] 15 XNET Cross Net Debugger [43,JFH2] 16 CHAOS Chaos [NC3] 17 UDP User Datagram [33,76,JBP] 18 MUX Multiplexing [17,JBP] 19 DCN-MEAS DCN Measurement Subsystems [DLM1] 20 HMP Host Monitoring [4,RH6] 21 PRM Packet Radio Measurement [ZSU] 22 XNS-IDP XEROX NS IDP [109,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 [106,RH6] 28-60 Unassigned [JBP] 61 any host internal protocol [JBP] 62 CFTP CFTP [38,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] 69 SAT-MON SATNET Monitoring [DM11] Reynolds & Postel [Page 12] Assigned Numbers RFC 923 Protocol Numbers 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] Reynolds & Postel [Page 13] Assigned Numbers RFC 923 Port Numbers ASSIGNED PORT NUMBERS Ports are used in the TCP [33,78] 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 [33,76]. 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 [13,34,JBP] 7 ECHO Echo [67,JBP] 9 DISCARD Discard [66,JBP] 11 USERS Active Users [62,JBP] 13 DAYTIME Daytime [65,JBP] 15 NETSTAT Who is up or NETSTAT [JBP] 17 QUOTE Quote of the Day [72,JBP] 19 CHARGEN Character Generator [64,JBP] 20 FTP File Transfer [Default Data] [33,68,JBP] 21 FTP File Transfer [Control] [33,68,JBP] 23 TELNET Telnet [84,JBP] 25 SMTP Simple Mail Transfer [33,74,JBP] 27 NSW-FE NSW User System FE [18,RHT] 29 MSG-ICP MSG ICP [60,RHT] 31 MSG-AUTH MSG Authentication [60,RHT] 33 Unassigned [JBP] 35 any printer server [JBP] 37 TIME Time [80,JBP] 39 RLP Resource Location Protocol [1,MA] 41 GRAPHICS Graphics [34,98,JBP] 42 NAMESERVER Host Name Server [33,71,JBP] 43 NICNAME Who Is [33,42,JAKE] 44 MPM-FLAGS MPM FLAGS Protocol [JBP] 45 MPM Message Processing Module [recv] [70,JBP] 46 MPM MPM [default send] [76,JBP] 47 NI-FTP NI FTP [104,SK] Reynolds & Postel [Page 14] Assigned Numbers RFC 923 Port Numbers 49 LOGIN Login Host Protocol [PHD1] 51 LA-MAINT IMP Logical Address Maintenance [57,AGM] 53 DOMAIN Domain Name Server [PM1] 55 ISI-GL ISI Graphics Language [10,RB6] 57 any private terminal access [JBP] 59 any private file service [JBP] 61 NI-MAIL NI MAIL [8,SK] 63 VIA-FTP VIA Systems - FTP [DXD] 65 Unassigned [JBP] 67 Unassigned [JBP] 69 TFTP Trivial File Transfer [33,87,KRS] 71 NETRJS Remote Job Service [12,34,RTB] 72 NETRJS Remote Job Service [12,34,RTB] 73 NETRJS Remote Job Service [12,34,RTB] 74 NETRJS Remote Job Service [12,34,RTB] 75 any private dial out service [JBP] 77 any private RJE service [JBP] 79 FINGER Finger [34,40,KLH] 81 HOSTS2 Name Server [EAK1] 83 HOSTS2-NS MIT ML Device [DPR] 85 MIT-ML-DEV MIT ML Device [DPR] 87 MIT-ML-DEV 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 [21,MRC] 97 SWIFT-RVF Swift Remote Vitural File Protocol [MXR] 99 METAGRAM Metagram Relay [GEOF] 101 HOSTNAME NIC Host Name Server [33,41,JAKE] 103 Unassigned [JBP] 105 CSNET-NS Mailbox Name Nameserver [96,MHS1] 107 RTELNET Remote Telnet Service [73,JBP] 109 POP Post Office Protocol [110,JKR1] 111 SUNRPC SUN Remote Procedure Call [DXG] 113 AUTH Authentication Service [99,MCSJ] 115 SFTP Simple File Transfer Protocol [54,MXL] 116 Unassigned [JBP] 117 UUCP-PATH UUCP Path Service [32,MAE] 118-129 Unassigned [JBP] 131 Unassigned [JBP] 132-223 Reserved [JBP] 224-241 Unassigned [JBP] 243 SUR-MEAS Survey Measurement [9,AV] 245 LINK LINK [14,RDB2] 247-255 Unassigned [JBP] Reynolds & Postel [Page 15] Assigned Numbers RFC 923 Autonomous System Numbers ASSIGNED AUTONOMOUS SYSTEM NUMBERS The Exterior Gateway Protocol (EGP) [93,90] 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 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 [SXB1] 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] 36-65534 Unassigned [JBP] Reynolds & Postel [Page 16] Assigned Numbers RFC 923 Autonomous System Numbers 65535 Reserved [JBP] Reynolds & Postel [Page 17] Assigned Numbers RFC 923 ARPANET Logical Addresses ASSIGNED ARPANET LOGICAL ADDRESSES The ARPANET facility for "logical addressing" is described in RFC 878 [56]. 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 Gateways [MB] 2-255 Unassigned [JBP] 256 Reserved [JBP] Reynolds & Postel [Page 18] Assigned Numbers RFC 923 ARPANET Link Numbers ASSIGNED 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 [7]. 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 sub-link. Link Assignments: Decimal Description References ------- ----------- ---------- 0 Reserved [JBP] 1-149 Unassigned [JBP] 150 Xerox NS IDP [109,LLG] 151 Unassigned [JBP] 152 PARC Universal Protocol [11,HGM] 153 TIP Status Reporting [JGH] 154 TIP Accounting [JGH] 155 Internet Protocol [regular] [33,77,JBP] 156-158 Internet Protocol [experimental] [33,77,JBP] 159 Figleaf Link [JBW1] 160-195 Unassigned [JBP] 196-247 Experimental Protocols [JBP] 248-255 Network Maintenance [JGH] Reynolds & Postel [Page 19] Assigned Numbers RFC 923 IEEE 802 SAP Numbers IEEE 802 SAP NUMBERS OF INTEREST Many of the networks of all classes are IEEE 802 Networks. These systems 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. Assignments: Service Access Point Description References -------------------- ----------- ---------- decimal binary 96 01100000 DOD IP [33,76,JBP] Reynolds & Postel [Page 20] Assigned Numbers RFC 923 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. Assignments: Ethernet Exp. Ethernet Description References ------------- ------------- ----------- ---------- decimal Hex decimal octal 512 0200 512 1000 XEROX PUP [1,HGM] 1536 0600 1536 3000 XEROX NS IDP [109,LLG] 2048 0800 513 1001 DOD IP [33,77,JBP] 2049 0801 - - X.75 Internet [LLG] 2050 0802 - - NBS Internet [LLG] 2051 0803 - - ECMA Internet [LLG] 2052 0804 - - Chaosnet [LLG] 2053 0805 - - X.25 Level 3 [LLG] 2054 0806 - - ARP [61,DCP1] 2076 081C - - Symbolics Private [DCP1] 32771 8003 - - Cronus VLN [100,DT15] 32772 8004 - - Cronus Direct [100,DT15] 32774 8006 - - Nestar [LLG] 32784 8010 - - Excelan [---] 32821 8035 - - Reverse ARP [36,JCM] 36864 9000 - - Loopback [LLG] The standard for t