RFC 9120 · INFORMATIONAL · 2021
MON · 14 SEP 2026
Nameservers for the Address and Routing Parameter Area Domain
Overview
RFC 9120, “Nameservers for the Address and Routing Parameter Area Domain”, is an Informational document published in October 2021 by K. Davies, J. Arkko. It updates RFC 3172. The canonical text is published by the RFC Editor.
Abstract
This document describes revisions to operational practices to separate the function of the "arpa" top-level domain in the DNS from its historical operation alongside the DNS root zone.
What “Informational” means
Published for the general information of the community. It does not define an IETF standard and carries no standards-track status.
Read this RFC
The canonical text of RFC 9120 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.
Relationships to other RFCs
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