Deprecating Infrastructure "int" Domains

This specification has been revised 3 times since RFC 1486 (1993). Each document below formally obsoleted the one before it; the versions still in force are listed first.

Revision timeline

  1. RFC 1486 (1993)
  2. RFC 1528 (1993)
  3. RFC 1529 (1993)
  4. RFC 9121 (2023)

Current versions — implement against these

Superseded versions — historical reference only

This lineage is derived automatically from the “obsoletes” relationships recorded in the public RFC Editor index — no editorial judgement is applied to the ordering. The most recent document in the chain is RFC 9121 (April 2023).