RFC 5855 · BEST CURRENT PRACTICE · 2010
MON · 15 JUN 2026
Nameservers for IPv4 and IPv6 Reverse Zones
Overview
RFC 5855, “Nameservers for IPv4 and IPv6 Reverse Zones”, is a Best Current Practice document published in May 2010 by J. Abley, T. Manderson. The canonical text is published by the RFC Editor.
Abstract
This document specifies a stable naming scheme for the nameservers that serve the zones IN-ADDR.ARPA and IP6.ARPA in the DNS. These zones contain data that facilitate reverse mapping (address to name). This memo documents an Internet Best Current Practice.
What “Best Current Practice” means
Documents the IETF community's recommended operational or procedural practice rather than a protocol specification.
Read this RFC
The canonical text of RFC 5855 is hosted at rfc-editor.org. Available in TXT,HTML.
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