RFC 20 · INTERNET STANDARD · 1969
WED · 17 JUN 2026
ASCII format for network interchange
Overview
RFC 20, “ASCII format for network interchange”, is an Internet Standard document published in October 1969 by V.G. Cerf. The canonical text is published by the RFC Editor.
What “Internet Standard” means
A mature, widely-implemented specification that has completed the full IETF standards process — the highest maturity level on the standards track.
Read this RFC
The canonical text of RFC 20 is hosted at rfc-editor.org. Available in TXT,PDF,HTML.
Other RFCs from 1969
- RFC 19 Two protocol suggestions to reduce congestion at swap bound nodes
- RFC 21 Network meeting
- RFC 18 IMP-IMP and HOST-HOST Control Links
- RFC 22 Host-host control message formats
- RFC 17 Some questions re: Host-IMP Protocol
- RFC 23 Transmission of Multiple Control Messages
- RFC 16 M.I.T
- RFC 24 Documentation Conventions