RFC 870 · HISTORIC · 1983
MON · 27 JUL 2026
Assigned numbers
Overview
RFC 870, “Assigned numbers”, is a Historic document published in October 1983 by J.K. Reynolds, J. Postel. It obsoletes RFC 820. It has been obsoleted by RFC 900 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.
Abstract
This RFC documents the list of numbers assigned for networks, protocols, etc. Obsoletes RFCs 820, 790, 776, 770, 762, 758, 755, 750, 739, 604.
What “Historic” means
A specification that has been superseded or is otherwise no longer recommended for use.
Read this RFC
The canonical text of RFC 870 is hosted at rfc-editor.org. Available in TXT,HTML.
Relationships to other RFCs
Other RFCs from 1983