| 892 | ISO Transport Protocol specificationInternational Organization for Standardization · obsoleted by RFC 905 | Unknown | December 1983 |
| 891 | DCN Local-Network ProtocolsD.L. Mills | Internet Standard | December 1983 |
| 889 | Internet Delay ExperimentsD.L. Mills | Informational | December 1983 |
| 887 | Resource Location ProtocolM. Accetta | Experimental | December 1983 |
| 886 | Proposed standard for message header mungingM.T. Rose | Unknown | December 1983 |
| 885 | Telnet end of record optionJ. Postel | Proposed Standard | December 1983 |
| 884 | Telnet terminal type optionM. Solomon, E. Wimmers · obsoleted by RFC 930 | Unknown | December 1983 |
| 878 | ARPANET 1822L Host Access ProtocolA.G. Malis | Unknown | December 1983 |
| 869 | Host Monitoring ProtocolR. Hinden | Historic | December 1983 |
| 883 | Domain names: Implementation specificationP. Mockapetris · obsoleted by RFC 1034, RFC 1035 | Unknown | November 1983 |
| 882 | Domain names: Concepts and facilitiesP. Mockapetris · obsoleted by RFC 1034, RFC 1035 | Unknown | November 1983 |
| 881 | Domain names plan and scheduleJ. Postel | Unknown | November 1983 |
| 879 | The TCP Maximum Segment Size and Related TopicsJ. Postel · obsoleted by RFC 7805, RFC 9293 | Historic | November 1983 |
| 880 | Official protocolsJ.K. Reynolds, J. Postel · obsoleted by RFC 901 | Historic | October 1983 |
| 870 | Assigned numbersJ.K. Reynolds, J. Postel · obsoleted by RFC 900 | Historic | October 1983 |
| 877 | Standard for the transmission of IP datagrams over public data networksJ.T. Korb · obsoleted by RFC 1356 | Unknown | September 1983 |
| 876 | Survey of SMTP implementationsD. Smallberg | Unknown | September 1983 |
| 850 | Standard for interchange of USENET messagesM.R. Horton · obsoleted by RFC 1036 | Unknown | June 1983 |
| 868 | Time ProtocolJ. Postel, K. Harrenstien | Internet Standard | May 1983 |
| 867 | Daytime ProtocolJ. Postel | Internet Standard | May 1983 |
| 866 | Active usersJ. Postel | Internet Standard | May 1983 |
| 865 | Quote of the Day ProtocolJ. Postel | Internet Standard | May 1983 |
| 864 | Character Generator ProtocolJ. Postel | Internet Standard | May 1983 |
| 863 | Discard ProtocolJ. Postel | Internet Standard | May 1983 |
| 862 | Echo ProtocolJ. Postel | Internet Standard | May 1983 |
| 861 | Telnet Extended Options: List OptionJ. Postel, J. Reynolds | Internet Standard | May 1983 |
| 860 | Telnet Timing Mark OptionJ. Postel, J. Reynolds | Internet Standard | May 1983 |
| 859 | Telnet Status OptionJ. Postel, J. Reynolds | Internet Standard | May 1983 |
| 858 | Telnet Suppress Go Ahead OptionJ. Postel, J. Reynolds | Internet Standard | May 1983 |
| 857 | Telnet Echo OptionJ. Postel, J. Reynolds | Internet Standard | May 1983 |
| 856 | Telnet Binary TransmissionJ. Postel, J. Reynolds | Internet Standard | May 1983 |
| 855 | Telnet Option SpecificationsJ. Postel, J.K. Reynolds | Internet Standard | May 1983 |
| 854 | Telnet Protocol SpecificationJ. Postel, J.K. Reynolds | Internet Standard | May 1983 |
| 849 | Suggestions for improved host table distributionM.R. Crispin | Unknown | May 1983 |
| 852 | ARPANET short blocking featureA.G. Malis | Unknown | April 1983 |
| 851 | ARPANET 1822L Host Access ProtocolA.G. Malis · obsoleted by RFC 878 | Unknown | April 1983 |
| 840 | Official protocolsJ. Postel · obsoleted by RFC 880 | Historic | April 1983 |
| 848 | Who provides the "little" TCP services?D. Smallberg | Unknown | March 1983 |
| 847 | Summary of Smallberg surveysA. Westine, D. Smallberg, J. Postel | Unknown | February 1983 |
| 846 | Who talks TCP? - survey of 22 February 1983D. Smallberg · obsoleted by RFC 847 | Unknown | February 1983 |
| 845 | Who talks TCP? - survey of 15 February 1983D. Smallberg · obsoleted by RFC 846 | Unknown | February 1983 |
| 844 | Who talks ICMP, too? - Survey of 18 February 1983R. Clements | Unknown | February 1983 |
| 843 | Who talks TCP? - survey of 8 February 83D. Smallberg · obsoleted by RFC 845 | Unknown | February 1983 |
| 842 | Who talks TCP? - survey of 1 February 83D. Smallberg · obsoleted by RFC 843 | Unknown | February 1983 |
| 841 | Specification for message format for Computer Based Message SystemsNational Bureau of Standards | Unknown | January 1983 |
| 839 | Who talks TCP?D. Smallberg · obsoleted by RFC 842 | Unknown | January 1983 |
| 838 | Who talks TCP?D. Smallberg · obsoleted by RFC 839 | Unknown | January 1983 |
| 837 | Who talks TCP?D. Smallberg · obsoleted by RFC 838 | Unknown | January 1983 |
| 836 | Who talks TCP?D. Smallberg · obsoleted by RFC 837 | Unknown | January 1983 |