| 97 | First Cut at a Proposed Telnet ProtocolJ.T. Melvin, R.W. Watson | Unknown | February 1971 |
| 791 | Internet ProtocolJ. Postel | Internet Standard | September 1981 |
| 977 | Network News Transfer ProtocolB. Kantor, P. Lapsley · obsoleted by RFC 3977 | Proposed Standard | February 1986 |
| 1034 | Domain names - concepts and facilitiesP. Mockapetris | Internet Standard | November 1987 |
| 1035 | Domain names - implementation and specificationP. Mockapetris | Internet Standard | November 1987 |
| 1591 | Domain Name System Structure and DelegationJ. Postel | Informational | March 1994 |
| 1715 | The H Ratio for Address Assignment EfficiencyC. Huitema | Informational | November 1994 |
| 1945 | Hypertext Transfer Protocol -- HTTP/1.0T. Berners-Lee, R. Fielding, H. Frystyk | Informational | May 1996 |
| 2373 | IP Version 6 Addressing ArchitectureR. Hinden, S. Deering · obsoleted by RFC 3513 | Proposed Standard | July 1998 |
| 2374 | An IPv6 Aggregatable Global Unicast Address FormatR. Hinden, M. O'Dell, S. Deering · obsoleted by RFC 3587 | Historic | July 1998 |
| 2396 | Uniform Resource Identifiers (URI): Generic SyntaxT. Berners-Lee, R. Fielding, L. Masinter · obsoleted by RFC 3986 | Draft Standard | August 1998 |
| 2460 | Internet Protocol, Version 6 (IPv6) SpecificationS. Deering, R. Hinden · obsoleted by RFC 8200 | Draft Standard | December 1998 |
| 2535 | Domain Name System Security ExtensionsD. Eastlake 3rd · obsoleted by RFC 4033, RFC 4034, RFC 4035 | Proposed Standard | March 1999 |
| 2606 | Reserved Top Level DNS NamesD. Eastlake 3rd, A. Panitz | Best Current Practice | June 1999 |
| 2616 | Hypertext Transfer Protocol -- HTTP/1.1R. Fielding, J. Gettys, J. Mogul, H. Frystyk, L. Masinter, P. Leach, T. Berners-Lee · obsoleted by RFC 7230, RFC 7231, RFC 7232, RFC 7233, RFC 7234, RFC 7235 | Draft Standard | June 1999 |
| 2663 | IP Network Address Translator (NAT) Terminology and ConsiderationsP. Srisuresh, M. Holdrege | Informational | August 1999 |
| 2810 | Internet Relay Chat: ArchitectureC. Kalt | Informational | April 2000 |
| 2811 | Internet Relay Chat: Channel ManagementC. Kalt | Informational | April 2000 |
| 2812 | Internet Relay Chat: Client ProtocolC. Kalt | Informational | April 2000 |
| 2813 | Internet Relay Chat: Server ProtocolC. Kalt | Informational | April 2000 |
| 2821 | Simple Mail Transfer ProtocolJ. Klensin, Ed. · obsoleted by RFC 5321 | Proposed Standard | April 2001 |
| 2822 | Internet Message FormatP. Resnick, Ed. · obsoleted by RFC 5322 | Proposed Standard | April 2001 |
| 2854 | The 'text/html' Media TypeD. Connolly, L. Masinter | Informational | June 2000 |
| 2980 | Common NNTP ExtensionsS. Barber | Informational | October 2000 |
| 3513 | Internet Protocol Version 6 (IPv6) Addressing ArchitectureR. Hinden, S. Deering · obsoleted by RFC 4291 | Proposed Standard | April 2003 |
| 3514 | The Security Flag in the IPv4 HeaderS. Bellovin | Informational | 1 April 2003 |