| 768 | User Datagram ProtocolJ. Postel | Internet Standard | August 1980 |
| 791 | Internet ProtocolJ. Postel | Internet Standard | September 1981 |
| 792 | Internet Control Message ProtocolJ. Postel | Internet Standard | September 1981 |
| 793 | Transmission Control ProtocolJ. Postel · obsoleted by RFC 9293 | Internet Standard | September 1981 |
| 1191 | Path MTU discoveryJ. Mogul, S. Deering | Draft Standard | November 1990 |
| 1918 | Address Allocation for Private InternetsY. Rekhter, B. Moskowitz, D. Karrenberg, G. J. de Groot, E. Lear | Best Current Practice | February 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 |
| 2473 | Generic Packet Tunneling in IPv6 SpecificationA. Conta, S. Deering | Proposed 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 |
| 2983 | Differentiated Services and TunnelsD. Black | Informational | October 2000 |
| 3022 | Traditional IP Network Address Translator (Traditional NAT)P. Srisuresh, K. Egevang | Informational | January 2001 |
| 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 |
| 3704 | Ingress Filtering for Multihomed NetworksF. Baker, P. Savola | Best Current Practice | March 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 |
| 4271 | A Border Gateway Protocol 4 (BGP-4)Y. Rekhter, Ed., T. Li, Ed., S. Hares, Ed. | Draft Standard | January 2006 |
| 4291 | IP Version 6 Addressing ArchitectureR. Hinden, S. Deering | Draft Standard | February 2006 |
| 4443 | Internet Control Message Protocol (ICMPv6) for the Internet Protocol Version 6 (IPv6) SpecificationA. Conta, S. Deering, M. Gupta, Ed. | Internet Standard | March 2006 |
| 4821 | Packetization Layer Path MTU DiscoveryM. Mathis, J. Heffner | Proposed Standard | March 2007 |
| 4862 | IPv6 Stateless Address AutoconfigurationS. Thomson, T. Narten, T. Jinmei | Draft Standard | September 2007 |
| 4925 | Softwire Problem StatementX. Li, Ed., S. Dawkins, Ed., D. Ward, Ed., A. Durand, Ed. | Informational | July 2007 |
| 4961 | Symmetric RTP / RTP Control Protocol (RTCP)D. Wing | Best Current Practice | July 2007 |
| 5082 | The Generalized TTL Security Mechanism (GTSM)V. Gill, J. Heasley, D. Meyer, P. Savola, Ed., C. Pignataro | Proposed Standard | October 2007 |
| 5595 | The Datagram Congestion Control Protocol (DCCP) Service CodesG. Fairhurst | Proposed Standard | September 2009 |
| 5741 | RFC Streams, Headers, and BoilerplatesL. Daigle, Ed., O. Kolkman, Ed., IAB · obsoleted by RFC 7841 | Informational | December 2009 |
| 5969 | IPv6 Rapid Deployment on IPv4 Infrastructures (6rd) -- Protocol SpecificationW. Townsley, O. Troan | Proposed Standard | August 2010 |
| 6040 | Tunnelling of Explicit Congestion NotificationB. Briscoe | Proposed Standard | November 2010 |
| 6145 | IP/ICMP Translation AlgorithmX. Li, C. Bao, F. Baker · obsoleted by RFC 7915 | Proposed Standard | April 2011 |
| 6146 | Stateful NAT64: Network Address and Protocol Translation from IPv6 Clients to IPv4 ServersM. Bagnulo, P. Matthews, I. van Beijnum | Proposed Standard | April 2011 |
| 6324 | Routing Loop Attack Using IPv6 Automatic Tunnels: Problem Statement and Proposed MitigationsG. Nakibly, F. Templin | Informational | August 2011 |
| 6346 | The Address plus Port (A+P) Approach to the IPv4 Address ShortageR. Bush, Ed. | Experimental | August 2011 |
| 6437 | IPv6 Flow Label SpecificationS. Amante, B. Carpenter, S. Jiang, J. Rajahalme | Proposed Standard | November 2011 |
| 6535 | Dual-Stack Hosts Using "Bump-in-the-Host" (BIH)B. Huang, H. Deng, T. Savolainen | Proposed Standard | February 2012 |
| 6887 | Port Control Protocol (PCP)D. Wing, Ed., S. Cheshire, M. Boucadair, R. Penno, P. Selkirk | Proposed Standard | April 2013 |
| 7136 | Significance of IPv6 Interface IdentifiersB. Carpenter, S. Jiang | Proposed Standard | February 2014 |