📄 rfc1117.txt
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Class D Address Note: No addresses are allowed with the four highest-order bits set to 1-1-1-1. These addresses, called "class E", are reserved. 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 VENERA.ISI.EDU in dotted decimal is 010.001.000.052, or 10.1.0.52. 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 research Internet and operational 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 the Internet. Independent networks should not be listed in the working tables of the Internet hosts or gateways.Romano, Stahl & Recker [Page 5]RFC 1117 Internet Numbers August 1989 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. The address zero is to be interpreted as meaning "this", as in "this network". For example, the address 0.0.0.37 could be interpreted as meaning host 37 on 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 interpreted as meaning all hosts on the network 128.9. The class A network number 127 is assigned the "loopback" function, that is, a datagram sent by a higher level protocol to a network 127 address should loop back inside the host. No datagram "sent" to a network 127 address should ever appear on any network anywhere.Romano, Stahl & Recker [Page 6]RFC 1117 Internet Numbers August 1989Class A Networks* Internet Address Network Name References- ---------------- ------- ---- ---------- *0.rrr.rrr.rrr Reserved Reserved [JBP] 1.rrr.rrr.rrr-2.rrr.rrr.rrr Unassigned [NIC]C*3.rrr.rrr.rrr GE-INTERNET GE TCP/IP Net [JEB50]R 4.rrr.rrr.rrr SATNET Atlantic Sat Net [SHB] 5.rrr.rrr.rrr Unassigned Unassigned [NIC]D 6.rrr.rrr.rrr YPG-NET Yuma Proving Grounds [4,BWA]D 7.rrr.rrr.rrr T EDN-TEMP DCEC EDN [EC5]R 8.rrr.rrr.rrr BBNCCNET BBN Net [JSG5]R 9.rrr.rrr.rrr IBM IBM Rsch Net [MT1]R 10.rrr.rrr.rrr ARPANET ARPANET [4,JS283]D 11.rrr.rrr.rrr DODIIS DoD Intel Info Sys [AY5]C 12.rrr.rrr.rrr ATT ATT Bell Labs [MH82]C 13.rrr.rrr.rrr XEROX-NET XEROX Internet [47,JNL1]C 14.rrr.rrr.rrr PDN Public Data Net [JS283]R 15.rrr.rrr.rrr HP-INTERNET HP-INTERNET [18,WU1] 16.rrr.rrr.rrr-17.rrr.rrr.rrr Unassigned [NIC]R 18.rrr.rrr.rrr T MIT-TEMP MIT Net [9,39,DDC1] 19.rrr.rrr.rrr-20.rrr.rrr.rrr Unassigned [NIC]D 21.rrr.rrr.rrr DDN-RVN DDN-RVN [MLC]D 22.rrr.rrr.rrr DISNET DISNET [JM28]D 23.rrr.rrr.rrr DDN-TC-NET DDN-TestCell-Net [DH17] 24.rrr.rrr.rrr Unassigned Unassigned [NIC]R 25.rrr.rrr.rrr RSRE-EXP RSRE-EXP [CDB4]D 26.rrr.rrr.rrr MILNET MILNET [TMH6]R 27.rrr.rrr.rrr T NOSC-LCCN-TEMP NOSC/LCCN [RH6]R 28.rrr.rrr.rrr WIDEBAND Wide Band Sat Net [CJW2]D 29.rrr.rrr.rrr T MILX25-TEMP MILNET X.25 Temp [MLC]D 30.rrr.rrr.rrr T ARPAX25-TEMP ARPA X.25 Temp [MLC]G 31.rrr.rrr.rrr UCDLA-NET UCLA-CATALOG-NET [CL64] 32.rrr.rrr.rrr-34.rrr.rrr.rrr Unassigned [NIC]R 35.rrr.rrr.rrr MERIT MERIT Comp Net [HWB]R 36.rrr.rrr.rrr T SU-NET-TEMP Stanford Univ Net [VAF] 37.rrr.rrr.rrr-38.rrr.rrr.rrr Unassigned [NIC]R 39.rrr.rrr.rrr T SRINET-TEMP SRI Local Net [JMR] 40.rrr.rrr.rrr Unassigned Unassigned [NIC]R 41.rrr.rrr.rrr BBN-TEST-A BBN-GATE-TEST-A [RH6]R 42.rrr.rrr.rrr CAN-INET Canadian Rsch Net [47,PAP4]R*43.rrr.rrr.rrr JAPAN-A Japan Inet [JM292]R 44.rrr.rrr.rrr AMPRNET Amateur Rad Exp Net [PK28]C 45.rrr.rrr.rrr T SHOWNETA Trade Show Net [NIC]C 46.rrr.rrr.rrr BBNET BBN Corp Net [4,JSG1]R*47.rrr.rrr.rrr BNR BNR Corp Net [BM178] 48.rrr.rrr.rrr-126.rrr.rrr.rrr Unassigned [NIC] *127.rrr.rrr.rrr Loopback Loopback [JBP]Romano, Stahl & Recker [Page 7]RFC 1117 Internet Numbers August 1989Class B Networks* Internet Address Network Name References- ---------------- ------- ---- ---------- *128.0.rrr.rrr Reserved Reserved [JBP]R 128.1.rrr.rrr BBN-TEST-B BBN-GATE-TEST-B [RH6]R 128.2.rrr.rrr CMU-NET CMU-Ether [HDW2]R 128.3.rrr.rrr LBL-IP-NET1 LBL-CSR-NET [WJ2]R 128.4.rrr.rrr DCNET LINKABIT DCNET [32,DLM1]R 128.5.rrr.rrr FORDNET FORD DCNET [32,FJB3]R 128.6.rrr.rrr RUTGERS RUTGERS [CLH3]R 128.7.rrr.rrr KRAUTNET KRAUTNET [GB7]R 128.8.rrr.rrr UMDNET Univ of Maryl DCNET [32,DLM1]R 128.9.rrr.rrr ISI-NET USC-ISI Local Net [VLG]R 128.10.rrr.rrr PURDUE-CS-EN Purdue CS Ether [47,DT50]R 128.11.rrr.rrr BBN-CRONUS BBN DOS Proj [31,PK19]R 128.12.rrr.rrr SU-NET Stanford Univ Net [VAF]D 128.13.rrr.rrr MATNET Mob Access Term Net [SHB]R 128.14.rrr.rrr BBN-SAT-TEST BBN SATNET Test Net [SHB]R 128.15.rrr.rrr S1NET LLL-S1-NET [RAK12]R 128.16.rrr.rrr UCLNET Univ College London [PK]D 128.17.rrr.rrr MATNET-ALT Mob Access Term Alt [SHB]R 128.18.rrr.rrr SRINET SRI Local Net [TONY]D 128.19.rrr.rrr EDN DCEC EDN [EC5]D 128.20.rrr.rrr BRLNET BRLNET [4,MJM2]R 128.21.rrr.rrr SRI-PR-1 SRI Pck Rad-1 Net [PEM4]R 128.22.rrr.rrr SRI-PR-2 SRI Pck Rad-2 Net [PEM4] 128.23.rrr.rrr Unassigned Unassigned [NIC]R 128.24.rrr.rrr ROCKWELL-PR Rockwell Pck Rad Net [NG]D 128.25.rrr.rrr BRAGG-PR Ft. Bragg Pck Rad Net [LDB3]D 128.26.rrr.rrr SAPE-AIRNET RADC-SAPE-PR-NET [CAD13]D 128.27.rrr.rrr DEMO-PR-1 Demo-1 Pck Rad Net [LCS]D 128.28.rrr.rrr C3-PR-TEMP Testbed Dev PR NET [GMR]R 128.29.rrr.rrr MITRE MITRE Cablenet [45,TML]R 128.30.rrr.rrr MIT-NET MIT Local Net [DDC1]R 128.31.rrr.rrr MIT-RES MIT Rsch Net [DDC1]R 128.32.rrr.rrr UCB-ETHER UC Berkeley Ether [RWH5]R 128.33.rrr.rrr BBN-NET BBN Net [JSG5]R 128.34.rrr.rrr NOSC-LCCN NOSC/LCCN [RH6]R 128.35.rrr.rrr CISLTESTNET1 Honeywell [22,23,JLM23]R 128.36.rrr.rrr YALE-NET YALE Net [47,HML1]D 128.37.rrr.rrr YUMA Army Yuma Proving Grd [4,RBB2]D 128.38.rrr.rrr NSWC-NET NSWC Local Host Net [VHB]R 128.39.rrr.rrr NTANET NDRE-TIU [PS27]R 128.40.rrr.rrr UCL-NET-A Univ College London [JA168]R 128.41.rrr.rrr UCL-NET-B Univ College London [JA168]R 128.42.rrr.rrr RICE-NET Rice Univ [47,FG50]R 128.43.rrr.rrr DRENET Canada REF ARPANET [4,JR17]Romano, Stahl & Recker [Page 8]RFC 1117 Internet Numbers August 1989D 128.44.rrr.rrr WSMR-NET1 White Sands Net [CAS1]C 128.45.rrr.rrr DEC-WRL-NET DEC WRL Net [47,BKR]R 128.46.rrr.rrr PURDUE-NET Purdue Camp Net [JRS8]D 128.47.rrr.rrr TACTNET Tactical Pck Net [3,MB31]G 128.48.rrr.rrr UCDLA-NET-B UCDLA-Net-B [4,CL64]R 128.49.rrr.rrr NOSC-ETHER NOSC Ether [47,RLB3]G 128.50.rrr.rrr COINS COINS Online Intnet [RLS6]G 128.51.rrr.rrr COINSTNET COINS Online Intnet [RLS6]R 128.52.rrr.rrr MIT-AI-NET MIT AI NET [47,MDC]R 128.53.rrr.rrr SAC-PR-2 SAC PRNET Number 2 [GMR]R 128.54.rrr.rrr UCSD UC San Diego Net [47,GH29]R 128.55.rrr.rrr MFENET LLNL MFE Net [47,BCH2]D 128.56.rrr.rrr USNA-NET US Naval Acad Net [RAD15]D 128.57.rrr.rrr DEMO-PR-2 Demo-2 Pck Rad Net [LCS]C 128.58.rrr.rrr SLCS Schlumberger LCS Net [47,CG64]R 128.59.rrr.rrr CU-NET Columbia Univ [47,BC14]D 128.60.rrr.rrr NRL-ETHER NRL Lab Area Net [WF3]R 128.61.rrr.rrr GATECH Georgia Tech [47,DD11]R 128.62.rrr.rrr MCC-NET MCC Corp Net [47,CBD]R 128.63.rrr.rrr BRL-SUBNET BRL-SUBNET-EXP [MJM2]R 128.64.rrr.rrr-128.79.rrr.rrr Net Dynamics Exp [ZSU]D 128.80.rrr.rrr CECOMNET CECOM EPR NET [PFS2]R 128.81.rrr.rrr SYMBOLICS SYMBOLICS [47,SE31]R 128.82.rrr.rrr ODU ODU Rsch Net [RW164]
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