US
RFC 3363: Representing Internet Protocol version 6 (IPv6) Addresses in the Domain Name System (DNS)
https://www.rfc-editor.org/rfc/rfc3363
…ust 2002 The main arguments and the issues are covered in a separate document [ RFC3364 ] that reflects the current understanding of the issues. This document summarizes the outcome of these discussions. The issue of the root of reverse IPv6 address map is outside the scope of th…