| 791 | Internet ProtocolJ. Postel | Internet Standard | September 1981 |
| 1035 | Domain names - implementation and specificationP. Mockapetris | Internet Standard | November 1987 |
| 1191 | Path MTU discoveryJ. Mogul, S. Deering | Draft Standard | November 1990 |
| 2119 | Key words for use in RFCs to Indicate Requirement LevelsS. Bradner | Best Current Practice | March 1997 |
| 2308 | Negative Caching of DNS Queries (DNS NCACHE)M. Andrews | Proposed Standard | March 1998 |
| 2671 | Extension Mechanisms for DNS (EDNS0)P. Vixie · obsoleted by RFC 6891 | Proposed Standard | August 1999 |
| 2782 | A DNS RR for specifying the location of services (DNS SRV)A. Gulbrandsen, P. Vixie, L. Esibov | Proposed Standard | February 2000 |
| 2931 | DNS Request and Transaction Signatures ( SIG(0)s )D. Eastlake 3rd | Proposed Standard | September 2000 |
| 4035 | Protocol Modifications for the DNS Security ExtensionsR. Arends, R. Austein, M. Larson, D. Massey, S. Rose | Proposed Standard | March 2005 |
| 5155 | DNS Security (DNSSEC) Hashed Authenticated Denial of ExistenceB. Laurie, G. Sisson, R. Arends, D. Blacka | Proposed Standard | March 2008 |
| 6891 | Extension Mechanisms for DNS (EDNS(0))J. Damas, M. Graff, P. Vixie | Internet Standard | April 2013 |
| 7739 | Security Implications of Predictable Fragment Identification ValuesF. Gont | Informational | February 2016 |
| 7766 | DNS Transport over TCP - Implementation RequirementsJ. Dickinson, S. Dickinson, R. Bellis, A. Mankin, D. Wessels | Proposed Standard | March 2016 |
| 7841 | RFC Streams, Headers, and BoilerplatesJ. Halpern, Ed., L. Daigle, Ed., O. Kolkman, Ed. | Informational | May 2016 |
| 8085 | UDP Usage GuidelinesL. Eggert, G. Fairhurst, G. Shepherd | Best Current Practice | March 2017 |
| 8174 | Ambiguity of Uppercase vs Lowercase in RFC 2119 Key WordsB. Leiba | Best Current Practice | May 2017 |
| 8200 | Internet Protocol, Version 6 (IPv6) SpecificationS. Deering, R. Hinden | Internet Standard | July 2017 |
| 8201 | Path MTU Discovery for IP version 6J. McCann, S. Deering, J. Mogul, R. Hinden, Ed. | Internet Standard | July 2017 |
| 8899 | Packetization Layer Path MTU Discovery for Datagram TransportsG. Fairhurst, T. Jones, M. Tüxen, I. Rüngeler, T. Völker | Proposed Standard | September 2020 |
| 8900 | IP Fragmentation Considered FragileR. Bonica, F. Baker, G. Huston, R. Hinden, O. Troan, F. Gont | Best Current Practice | September 2020 |
| 8945 | Secret Key Transaction Authentication for DNS (TSIG)F. Dupont, S. Morris, P. Vixie, D. Eastlake 3rd, O. Gudmundsson, B. Wellington | Internet Standard | November 2020 |
| 9460 | Service Binding and Parameter Specification via the DNS (SVCB and HTTPS Resource Records)B. Schwartz, M. Bishop, E. Nygren | Proposed Standard | November 2023 |
| 9471 | DNS Glue Requirements in Referral ResponsesM. Andrews, S. Huque, P. Wouters, D. Wessels | Proposed Standard | September 2023 |
| 9499 | DNS TerminologyP. Hoffman, K. Fujiwara | Best Current Practice | March 2024 |