| 33 | New Host-Host ProtocolS.D. Crocker | Unknown | February 1970 |
| 37 | Network Meeting Epilogue, etcS.D. Crocker | Unknown | March 1970 |
| 38 | Comments on Network Protocol from NWG/RFC #36S.M. Wolfe | Unknown | March 1970 |
| 48 | Possible protocol plateauJ. Postel, S.D. Crocker | Unknown | April 1970 |
| 61 | Note on Interprocess Communication in a Resource Sharing Computer NetworkD.C. Walden · obsoleted by RFC 62 | Unknown | July 1970 |
| 76 | Connection by name: User oriented protocolJ. Bouknight, J. Madden, G.R. Grossman | Unknown | October 1970 |
| 333 | Proposed experiment with a Message Switching ProtocolR.D. Bressler, D. Murphy, D.C. Walden | Unknown | May 1972 |
| 739 | Assigned numbersJ. Postel · obsoleted by RFC 750 | Historic | November 1977 |
| 758 | Assigned numbersJ. Postel · obsoleted by RFC 762 | Historic | August 1979 |
| 768 | User Datagram ProtocolJ. Postel | Internet Standard | August 1980 |
| 793 | Transmission Control ProtocolJ. Postel · obsoleted by RFC 9293 | Internet Standard | September 1981 |
| 820 | Assigned numbersJ. Postel · obsoleted by RFC 870 | Historic | August 1982 |
| 900 | Assigned NumbersJ.K. Reynolds, J. Postel · obsoleted by RFC 923 | Historic | June 1984 |
| 959 | File Transfer ProtocolJ. Postel, J. Reynolds | Internet Standard | October 1985 |
| 1122 | Requirements for Internet Hosts - Communication LayersR. Braden, Ed. | Internet Standard | October 1989 |
| 1340 | Assigned NumbersJ. Reynolds, J. Postel · obsoleted by RFC 1700 | Historic | July 1992 |
| 1700 | Assigned NumbersJ. Reynolds, J. Postel · obsoleted by RFC 3232 | Historic | October 1994 |
| 1812 | Requirements for IP Version 4 RoutersF. Baker, Ed. | Proposed Standard | June 1995 |
| 1833 | Binding Protocols for ONC RPC Version 2R. Srinivasan | Proposed Standard | August 1995 |
| 2119 | Key words for use in RFCs to Indicate Requirement LevelsS. Bradner | Best Current Practice | March 1997 |
| 2595 | Using TLS with IMAP, POP3 and ACAPC. Newman | Proposed Standard | June 1999 |
| 2644 | Changing the Default for Directed Broadcasts in RoutersD. Senie | Best Current Practice | August 1999 |
| 2780 | IANA Allocation Guidelines For Values In the Internet Protocol and Related HeadersS. Bradner, V. Paxson | Best Current Practice | March 2000 |
| 2817 | Upgrading to TLS Within HTTP/1.1R. Khare, S. Lawrence | Proposed Standard | May 2000 |
| 3232 | Assigned Numbers: RFC 1700 is Replaced by an On-line DatabaseJ. Reynolds, Ed. | Informational | January 2002 |
| 3261 | SIP: Session Initiation ProtocolJ. Rosenberg, H. Schulzrinne, G. Camarillo, A. Johnston, J. Peterson, R. Sparks, M. Handley, E. Schooler | Proposed Standard | July 2002 |
| 3692 | Assigning Experimental and Testing Numbers Considered UsefulT. Narten | Best Current Practice | January 2004 |
| 4301 | Security Architecture for the Internet ProtocolS. Kent, K. Seo | Proposed Standard | December 2005 |
| 4340 | Datagram Congestion Control Protocol (DCCP)E. Kohler, M. Handley, S. Floyd | Proposed Standard | March 2006 |
| 4727 | Experimental Values In IPv4, IPv6, ICMPv4, ICMPv6, UDP, and TCP HeadersB. Fenner | Proposed Standard | November 2006 |
| 4960 | Stream Control Transmission ProtocolR. Stewart, Ed. · obsoleted by RFC 9260 | Proposed Standard | September 2007 |
| 5226 | Guidelines for Writing an IANA Considerations Section in RFCsT. Narten, H. Alvestrand · obsoleted by RFC 8126 | Best Current Practice | May 2008 |
| 5245 | Interactive Connectivity Establishment (ICE): A Protocol for Network Address Translator (NAT) Traversal for Offer/Answer ProtocolsJ. Rosenberg · obsoleted by RFC 8445, RFC 8839 | Proposed Standard | April 2010 |
| 5246 | The Transport Layer Security (TLS) Protocol Version 1.2T. Dierks, E. Rescorla · obsoleted by RFC 8446, RFC 9846 | Proposed Standard | August 2008 |
| 5389 | Session Traversal Utilities for NAT (STUN)J. Rosenberg, R. Mahy, P. Matthews, D. Wing · obsoleted by RFC 8489 | Proposed Standard | October 2008 |
| 5405 | Unicast UDP Usage Guidelines for Application DesignersL. Eggert, G. Fairhurst · obsoleted by RFC 8085 | Best Current Practice | November 2008 |
| 5741 | RFC Streams, Headers, and BoilerplatesL. Daigle, Ed., O. Kolkman, Ed., IAB · obsoleted by RFC 7841 | Informational | December 2009 |
| 5766 | Traversal Using Relays around NAT (TURN): Relay Extensions to Session Traversal Utilities for NAT (STUN)R. Mahy, P. Matthews, J. Rosenberg · obsoleted by RFC 8656 | Proposed Standard | April 2010 |
| 5925 | The TCP Authentication OptionJ. Touch, A. Mankin, R. Bonica | Proposed Standard | June 2010 |
| 6066 | Transport Layer Security (TLS) Extensions: Extension DefinitionsD. Eastlake 3rd | Proposed Standard | January 2011 |
| 6335 | Internet Assigned Numbers Authority (IANA) Procedures for the Management of the Service Name and Transport Protocol Port Number RegistryM. Cotton, L. Eggert, J. Touch, M. Westerlund, S. Cheshire | Best Current Practice | August 2011 |
| 6347 | Datagram Transport Layer Security Version 1.2E. Rescorla, N. Modadugu · obsoleted by RFC 9147 | Proposed Standard | January 2012 |
| 6762 | Multicast DNSS. Cheshire, M. Krochmal | Proposed Standard | February 2013 |
| 6763 | DNS-Based Service DiscoveryS. Cheshire, M. Krochmal | Proposed Standard | February 2013 |
| 7120 | Early IANA Allocation of Standards Track Code PointsM. Cotton | Best Current Practice | January 2014 |
| 7230 | Hypertext Transfer Protocol (HTTP/1.1): Message Syntax and RoutingR. Fielding, Ed., J. Reschke, Ed. · obsoleted by RFC 9110, RFC 9112 | Proposed Standard | June 2014 |