| 1700 | Assigned NumbersJ. Reynolds, J. Postel · obsoleted by RFC 3232 | Historic | October 1994 |
| 2026 | The Internet Standards Process -- Revision 3S. Bradner | Best Current Practice | October 1996 |
| 2119 | Key words for use in RFCs to Indicate Requirement LevelsS. Bradner | Best Current Practice | March 1997 |
| 2132 | DHCP Options and BOOTP Vendor ExtensionsS. Alexander, R. Droms | Draft Standard | March 1997 |
| 2434 | Guidelines for Writing an IANA Considerations Section in RFCsT. Narten, H. Alvestrand · obsoleted by RFC 5226 | Best Current Practice | October 1998 |
| 2860 | Memorandum of Understanding Concerning the Technical Work of the Internet Assigned Numbers AuthorityB. Carpenter, F. Baker, M. Roberts | Informational | June 2000 |
| 2929 | Domain Name System (DNS) IANA ConsiderationsD. Eastlake 3rd, E. Brunner-Williams, B. Manning · obsoleted by RFC 5395 | Best Current Practice | September 2000 |
| 2939 | Procedures and IANA Guidelines for Definition of New DHCP Options and Message TypesR. Droms | Best Current Practice | September 2000 |
| 3171 | IANA Guidelines for IPv4 Multicast Address AssignmentsZ. Albanna, K. Almeroth, D. Meyer, M. Schipper · obsoleted by RFC 5771 | Best Current Practice | August 2001 |
| 3228 | IANA Considerations for IPv4 Internet Group Management Protocol (IGMP)B. Fenner · obsoleted by RFC 9778 | Best Current Practice | February 2002 |
| 3232 | Assigned Numbers: RFC 1700 is Replaced by an On-line DatabaseJ. Reynolds, Ed. | Informational | January 2002 |
| 3315 | Dynamic Host Configuration Protocol for IPv6 (DHCPv6)R. Droms, Ed., J. Bound, B. Volz, T. Lemon, C. Perkins, M. Carney · obsoleted by RFC 8415 | Proposed Standard | July 2003 |
| 3552 | Guidelines for Writing RFC Text on Security ConsiderationsE. Rescorla, B. Korver | Best Current Practice | July 2003 |
| 3575 | IANA Considerations for RADIUS (Remote Authentication Dial In User Service)B. Aboba | Proposed Standard | July 2003 |
| 3692 | Assigning Experimental and Testing Numbers Considered UsefulT. Narten | Best Current Practice | January 2004 |
| 3748 | Extensible Authentication Protocol (EAP)B. Aboba, L. Blunk, J. Vollbrecht, J. Carlson, H. Levkowetz, Ed. | Proposed Standard | June 2004 |
| 3775 | Mobility Support in IPv6D. Johnson, C. Perkins, J. Arkko · obsoleted by RFC 6275 | Proposed Standard | June 2004 |
| 3932 | The IESG and RFC Editor Documents: ProceduresH. Alvestrand · obsoleted by RFC 5742 | Best Current Practice | October 2004 |
| 3942 | Reclassifying Dynamic Host Configuration Protocol version 4 (DHCPv4) OptionsB. Volz | Proposed Standard | November 2004 |
| 3968 | The Internet Assigned Number Authority (IANA) Header Field Parameter Registry for the Session Initiation Protocol (SIP)G. Camarillo | Best Current Practice | December 2004 |
| 3978 | IETF Rights in ContributionsS. Bradner, Ed. · obsoleted by RFC 5378 | Best Current Practice | March 2005 |
| 4005 | Diameter Network Access Server ApplicationP. Calhoun, G. Zorn, D. Spence, D. Mitton · obsoleted by RFC 7155 | Proposed Standard | August 2005 |
| 4025 | A Method for Storing IPsec Keying Material in DNSM. Richardson | Proposed Standard | March 2005 |
| 4044 | Fibre Channel Management MIBK. McCloghrie | Proposed Standard | May 2005 |
| 4124 | Protocol Extensions for Support of Diffserv-aware MPLS Traffic EngineeringF. Le Faucheur, Ed. | Proposed Standard | June 2005 |
| 4169 | Hypertext Transfer Protocol (HTTP) Digest Authentication Using Authentication and Key Agreement (AKA) Version-2V. Torvinen, J. Arkko, M. Naslund | Informational | November 2005 |
| 4271 | A Border Gateway Protocol 4 (BGP-4)Y. Rekhter, Ed., T. Li, Ed., S. Hares, Ed. | Draft Standard | January 2006 |
| 4283 | Mobile Node Identifier Option for Mobile IPv6 (MIPv6)A. Patel, K. Leung, M. Khalil, H. Akhtar, K. Chowdhury | Proposed Standard | December 2005 |
| 4288 | Media Type Specifications and Registration ProceduresN. Freed, J. Klensin · obsoleted by RFC 6838 | Best Current Practice | December 2005 |
| 4301 | Security Architecture for the Internet ProtocolS. Kent, K. Seo | Proposed Standard | December 2005 |
| 4306 | Internet Key Exchange (IKEv2) ProtocolC. Kaufman, Ed. · obsoleted by RFC 5996 | Proposed Standard | December 2005 |
| 4340 | Datagram Congestion Control Protocol (DCCP)E. Kohler, M. Handley, S. Floyd | Proposed Standard | March 2006 |
| 4346 | The Transport Layer Security (TLS) Protocol Version 1.1T. Dierks, E. Rescorla · obsoleted by RFC 5246 | Historic | April 2006 |
| 4366 | Transport Layer Security (TLS) ExtensionsS. Blake-Wilson, M. Nystrom, D. Hopwood, J. Mikkelsen, T. Wright · obsoleted by RFC 5246, RFC 6066 | Proposed Standard | April 2006 |
| 4395 | Guidelines and Registration Procedures for New URI SchemesT. Hansen, T. Hardie, L. Masinter · obsoleted by RFC 7595 | Best Current Practice | February 2006 |
| 4422 | Simple Authentication and Security Layer (SASL)A. Melnikov, Ed., K. Zeilenga, Ed. | Proposed Standard | June 2006 |
| 4446 | IANA Allocations for Pseudowire Edge to Edge Emulation (PWE3)L. Martini | Best Current Practice | April 2006 |
| 4520 | Internet Assigned Numbers Authority (IANA) Considerations for the Lightweight Directory Access Protocol (LDAP)K. Zeilenga | Best Current Practice | June 2006 |
| 4589 | Location Types RegistryH. Schulzrinne, H. Tschofenig | Proposed Standard | July 2006 |
| 4727 | Experimental Values In IPv4, IPv6, ICMPv4, ICMPv6, UDP, and TCP HeadersB. Fenner | Proposed Standard | November 2006 |
| 4995 | The RObust Header Compression (ROHC) FrameworkL-E. Jonsson, G. Pelletier, K. Sandlund · obsoleted by RFC 5795 | Proposed Standard | July 2007 |