| 1191 | Path MTU discoveryJ. Mogul, S. Deering | Draft Standard | November 1990 |
| 1305 | Network Time Protocol (Version 3) Specification, Implementation and AnalysisD. Mills · obsoleted by RFC 5905 | Historic | March 1992 |
| 1321 | The MD5 Message-Digest AlgorithmR. Rivest | Informational | April 1992 |
| 1700 | Assigned NumbersJ. Reynolds, J. Postel · obsoleted by RFC 3232 | Historic | October 1994 |
| 1981 | Path MTU Discovery for IP version 6J. McCann, S. Deering, J. Mogul · obsoleted by RFC 8201 | Draft Standard | August 1996 |
| 2119 | Key words for use in RFCs to Indicate Requirement LevelsS. Bradner | Best Current Practice | March 1997 |
| 2460 | Internet Protocol, Version 6 (IPv6) SpecificationS. Deering, R. Hinden · obsoleted by RFC 8200 | Draft Standard | December 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 |
| 2782 | A DNS RR for specifying the location of services (DNS SRV)A. Gulbrandsen, P. Vixie, L. Esibov | Proposed Standard | February 2000 |
| 3168 | The Addition of Explicit Congestion Notification (ECN) to IPK. Ramakrishnan, S. Floyd, D. Black | Proposed Standard | September 2001 |
| 3232 | Assigned Numbers: RFC 1700 is Replaced by an On-line DatabaseJ. Reynolds, Ed. | Informational | January 2002 |
| 3539 | Authentication, Authorization and Accounting (AAA) Transport ProfileB. Aboba, J. Wood | Proposed Standard | June 2003 |
| 3629 | UTF-8, a transformation format of ISO 10646F. Yergeau | Internet Standard | November 2003 |
| 3753 | Mobility Related TerminologyJ. Manner, Ed., M. Kojo, Ed. | Informational | June 2004 |
| 3828 | The Lightweight User Datagram Protocol (UDP-Lite)L-A. Larzon, M. Degermark, S. Pink, L-E. Jonsson, Ed., G. Fairhurst, Ed. | Proposed Standard | July 2004 |
| 4086 | Randomness Requirements for SecurityD. Eastlake 3rd, J. Schiller, S. Crocker | Best Current Practice | June 2005 |
| 4279 | Pre-Shared Key Ciphersuites for Transport Layer Security (TLS)P. Eronen, Ed., H. Tschofenig, Ed. | Proposed Standard | December 2005 |
| 4347 | Datagram Transport Layer SecurityE. Rescorla, N. Modadugu · obsoleted by RFC 6347 | Historic | April 2006 |
| 4564 | Objectives for Control and Provisioning of Wireless Access Points (CAPWAP)S. Govindan, Ed., H. Cheng, ZH. Yao, WH. Zhou, L. Yang | Informational | July 2006 |
| 4821 | Packetization Layer Path MTU DiscoveryM. Mathis, J. Heffner | Proposed Standard | March 2007 |
| 4962 | Guidance for Authentication, Authorization, and Accounting (AAA) Key ManagementR. Housley, B. Aboba | Best Current Practice | July 2007 |
| 4963 | IPv4 Reassembly Errors at High Data RatesJ. Heffner, M. Mathis, B. Chandler | Informational | July 2007 |
| 5226 | Guidelines for Writing an IANA Considerations Section in RFCsT. Narten, H. Alvestrand · obsoleted by RFC 8126 | Best Current Practice | May 2008 |
| 5246 | The Transport Layer Security (TLS) Protocol Version 1.2T. Dierks, E. Rescorla · obsoleted by RFC 8446, RFC 9846 | Proposed Standard | August 2008 |
| 5280 | Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) ProfileD. Cooper, S. Santesson, S. Farrell, S. Boeyen, R. Housley, W. Polk | Proposed Standard | May 2008 |
| 5416 | Control and Provisioning of Wireless Access Points (CAPWAP) Protocol Binding for IEEE 802.11P. Calhoun, Ed., M. Montemurro, Ed., D. Stanley, Ed. | Proposed Standard | March 2009 |
| 5417 | Control And Provisioning of Wireless Access Points (CAPWAP) Access Controller DHCP OptionP. Calhoun | Proposed Standard | March 2009 |
| 5418 | Control And Provisioning of Wireless Access Points (CAPWAP) Threat Analysis for IEEE 802.11 DeploymentsS. Kelly, T. Clancy | Informational | March 2009 |