| 1034 | Domain names - concepts and facilitiesP. Mockapetris | Internet Standard | November 1987 |
| 1035 | Domain names - implementation and specificationP. Mockapetris | Internet Standard | November 1987 |
| 2119 | Key words for use in RFCs to Indicate Requirement LevelsS. Bradner | Best Current Practice | March 1997 |
| 3833 | Threat Analysis of the Domain Name System (DNS)D. Atkins, R. Austein | Informational | August 2004 |
| 3986 | Uniform Resource Identifier (URI): Generic SyntaxT. Berners-Lee, R. Fielding, L. Masinter | Internet Standard | January 2005 |
| 5234 | Augmented BNF for Syntax Specifications: ABNFD. Crocker, Ed., P. Overell | Internet Standard | January 2008 |
| 6347 | Datagram Transport Layer Security Version 1.2E. Rescorla, N. Modadugu · obsoleted by RFC 9147 | Proposed Standard | January 2012 |
| 6690 | Constrained RESTful Environments (CoRE) Link FormatZ. Shelby | Proposed Standard | August 2012 |
| 7228 | Terminology for Constrained-Node NetworksC. Bormann, M. Ersue, A. Keranen | Informational | May 2014 |
| 7252 | The Constrained Application Protocol (CoAP)Z. Shelby, K. Hartke, C. Bormann | Proposed Standard | June 2014 |
| 7641 | Observing Resources in the Constrained Application Protocol (CoAP)K. Hartke | Proposed Standard | September 2015 |
| 7828 | The edns-tcp-keepalive EDNS0 OptionP. Wouters, J. Abley, S. Dickinson, R. Bellis | Proposed Standard | April 2016 |
| 7841 | RFC Streams, Headers, and BoilerplatesJ. Halpern, Ed., L. Daigle, Ed., O. Kolkman, Ed. | Informational | May 2016 |
| 7858 | Specification for DNS over Transport Layer Security (TLS)Z. Hu, L. Zhu, J. Heidemann, A. Mankin, D. Wessels, P. Hoffman | Proposed Standard | May 2016 |
| 7959 | Block-Wise Transfers in the Constrained Application Protocol (CoAP)C. Bormann, Z. Shelby, Ed. | Proposed Standard | August 2016 |
| 8094 | DNS over Datagram Transport Layer Security (DTLS)T. Reddy, D. Wing, P. Patil | Experimental | February 2017 |
| 8132 | PATCH and FETCH Methods for the Constrained Application Protocol (CoAP)P. van der Stok, C. Bormann, A. Sehgal | Proposed Standard | April 2017 |
| 8174 | Ambiguity of Uppercase vs Lowercase in RFC 2119 Key WordsB. Leiba | Best Current Practice | May 2017 |
| 8323 | CoAP (Constrained Application Protocol) over TCP, TLS, and WebSocketsC. Bormann, S. Lemay, H. Tschofenig, K. Hartke, B. Silverajan, B. Raymor, Ed. | Proposed Standard | February 2018 |
| 8446 | The Transport Layer Security (TLS) Protocol Version 1.3E. Rescorla · obsoleted by RFC 9846 | Proposed Standard | August 2018 |
| 8484 | DNS Queries over HTTPS (DoH)P. Hoffman, P. McManus | Proposed Standard | October 2018 |
| 8613 | Object Security for Constrained RESTful Environments (OSCORE)G. Selander, J. Mattsson, F. Palombini, L. Seitz | Proposed Standard | July 2019 |
| 8765 | DNS Push NotificationsT. Pusateri, S. Cheshire | Proposed Standard | June 2020 |
| 8768 | Constrained Application Protocol (CoAP) Hop-Limit OptionM. Boucadair, T. Reddy.K, J. Shallow | Proposed Standard | March 2020 |
| 8949 | Concise Binary Object Representation (CBOR)C. Bormann, P. Hoffman | Internet Standard | December 2020 |
| 9052 | CBOR Object Signing and Encryption (COSE): Structures and ProcessJ. Schaad | Internet Standard | August 2022 |
| 9076 | DNS Privacy ConsiderationsT. Wicinski, Ed. | Informational | July 2021 |
| 9147 | The Datagram Transport Layer Security (DTLS) Protocol Version 1.3E. Rescorla, H. Tschofenig, N. Modadugu | Proposed Standard | April 2022 |
| 9176 | Constrained RESTful Environments (CoRE) Resource DirectoryC. Amsüss, Ed., Z. Shelby, M. Koster, C. Bormann, P. van der Stok | Proposed Standard | April 2022 |
| 9250 | DNS over Dedicated QUIC ConnectionsC. Huitema, S. Dickinson, A. Mankin | Proposed Standard | May 2022 |
| 9364 | DNS Security Extensions (DNSSEC)P. Hoffman | Best Current Practice | February 2023 |
| 9460 | Service Binding and Parameter Specification via the DNS (SVCB and HTTPS Resource Records)B. Schwartz, M. Bishop, E. Nygren | Proposed Standard | November 2023 |
| 9461 | Service Binding Mapping for DNS ServersB. Schwartz | Proposed Standard | November 2023 |
| 9462 | Discovery of Designated ResolversT. Pauly, E. Kinnear, C. A. Wood, P. McManus, T. Jensen | Proposed Standard | November 2023 |
| 9463 | DHCP and Router Advertisement Options for the Discovery of Network-designated Resolvers (DNR)M. Boucadair, Ed., T. Reddy.K, Ed., D. Wing, N. Cook, T. Jensen | Proposed Standard | November 2023 |
| 9499 | DNS TerminologyP. Hoffman, K. Fujiwara | Best Current Practice | March 2024 |
| 9528 | Ephemeral Diffie-Hellman Over COSE (EDHOC)G. Selander, J. Preuß Mattsson, F. Palombini | Proposed Standard | March 2024 |
| 9952 | Application-Layer Protocol Negotiation (ALPN) ID for CoAP over DTLSM. S. Lenders, C. Amsüss, T. C. Schmidt, M. Wählisch | Informational | March 2026 |