| 822 | STANDARD FOR THE FORMAT OF ARPA INTERNET TEXT MESSAGESD. Crocker · obsoleted by RFC 2822 | Internet Standard | August 1982 |
| 1700 | Assigned NumbersJ. Reynolds, J. Postel · obsoleted by RFC 3232 | Historic | October 1994 |
| 2021 | Remote Network Monitoring Management Information Base Version 2 using SMIv2S. Waldbusser · obsoleted by RFC 4502 | Proposed Standard | January 1997 |
| 2048 | Multipurpose Internet Mail Extensions (MIME) Part Four: Registration ProceduresN. Freed, J. Klensin, J. Postel · obsoleted by RFC 4288, RFC 4289 | Best Current Practice | November 1996 |
| 2305 | A Simple Mode of Facsimile Using Internet MailK. Toyoda, H. Ohno, J. Murai, D. Wing · obsoleted by RFC 3965 | Proposed Standard | March 1998 |
| 2445 | Internet Calendaring and Scheduling Core Object Specification (iCalendar)F. Dawson, D. Stenerson · obsoleted by RFC 5545 | Proposed Standard | November 1998 |
| 2446 | iCalendar Transport-Independent Interoperability Protocol (iTIP) Scheduling Events, BusyTime, To-dos and Journal EntriesS. Silverberg, S. Mansour, F. Dawson, R. Hopson · obsoleted by RFC 5546 | Proposed Standard | November 1998 |
| 2447 | iCalendar Message-Based Interoperability Protocol (iMIP)F. Dawson, S. Mansour, S. Silverberg · obsoleted by RFC 6047 | Proposed Standard | November 1998 |
| 2474 | Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 HeadersK. Nichols, S. Blake, F. Baker, D. Black | Proposed Standard | December 1998 |
| 2475 | An Architecture for Differentiated ServicesS. Blake, D. Black, M. Carlson, E. Davies, Z. Wang, W. Weiss | Informational | December 1998 |
| 2535 | Domain Name System Security ExtensionsD. Eastlake 3rd · obsoleted by RFC 4033, RFC 4034, RFC 4035 | Proposed Standard | March 1999 |
| 2597 | Assured Forwarding PHB GroupJ. Heinanen, F. Baker, W. Weiss, J. Wroclawski | Proposed Standard | June 1999 |
| 2598 | An Expedited Forwarding PHBV. Jacobson, K. Nichols, K. Poduri · obsoleted by RFC 3246 | Proposed Standard | June 1999 |
| 2608 | Service Location Protocol, Version 2E. Guttman, C. Perkins, J. Veizades, M. Day | Proposed Standard | June 1999 |
| 2702 | Requirements for Traffic Engineering Over MPLSD. Awduche, J. Malcolm, J. Agogbua, M. O'Dell, J. McManus | Informational | September 1999 |
| 2819 | Remote Network Monitoring Management Information BaseS. Waldbusser | Internet Standard | May 2000 |
| 2828 | Internet Security GlossaryR. Shirey · obsoleted by RFC 4949 | Informational | May 2000 |
| 2848 | The PINT Service Protocol: Extensions to SIP and SDP for IP Access to Telephone Call ServicesS. Petrack, L. Conroy | Proposed Standard | June 2000 |
| 2854 | The 'text/html' Media TypeD. Connolly, L. Masinter | Informational | June 2000 |
| 2874 | DNS Extensions to Support IPv6 Address Aggregation and RenumberingM. Crawford, C. Huitema | Historic | July 2000 |
| 2916 | E.164 number and DNSP. Faltstrom · obsoleted by RFC 3761 | Proposed Standard | September 2000 |
| 3136 | The SPIRITS ArchitectureL. Slutsman, Ed., I. Faynberg, H. Lu, M. Weissman | Informational | June 2001 |