RFC 511 · UNKNOWN · 1973
SUN · 14 JUN 2026
Enterprise phone service to NIC from ARPANET sites
Overview
RFC 511, “Enterprise phone service to NIC from ARPANET sites”, is an Unknown document published in May 1973 by J.B. North. The canonical text is published by the RFC Editor.
What “Unknown” means
The standards-track status of this early RFC was never formally classified.
Read this RFC
The canonical text of RFC 511 is hosted at rfc-editor.org. Available in TXT,HTML.
Other RFCs from 1973
- RFC 512 More on lost message detection
- RFC 510 Request for network mailbox addresses
- RFC 513 Comments on the new Telnet specifications
- RFC 509 Traffic statistics
- RFC 514 Network make-work
- RFC 508 Real-time data transmission on the ARPANET
- RFC 515 Specifications for Datalanguage, Version 0/9
- RFC 516 Lost message detection