IN-ADDR.ARPA Transition

This is the final update for the IN-ADDR.ARPA transition work.

The IN-ADDR.ARPA DNSSEC Delegation Signer record has been added to the ARPA zone.

This action now extends the DNSSEC validation chain to the IN-ADDR.ARPA zone.

No further updates will be posted to this project web site.

A note of thanks is extended to all the people and entities involved in this work: ARIN for their co-operation in the transition and for acting as the technical administrator of the IN-ADDR.ARPA zone, the operators of the 12 root-servers who carried the IN-ADDR.ARPA zone for many years, and the RIRs (RIPE-NCC, ARIN, LACNIC, APNIC, and AfriNIC) for taking on the role of operating the RFC5855 nameservers.

This is the sixth of a number of updates regarding the IN-ADDR.ARPA zone.

As of 2011-03-07 23:58 UTC all of the 12 root servers which were serving the IN-ADDR.ARPA zone had stopped doing so as described by ‘Planned IN-ADDR.ARPA Nameserver Change’.

The nameserver set now serving IN-ADDR.ARPA is, as described by RFC 5855:

A.IN-ADDR-SERVERS.ARPA (operated by ARIN)
B.IN-ADDR-SERVERS.ARPA (operated by ICANN)
C.IN-ADDR-SERVERS.ARPA (operated by AfriNIC)
D.IN-ADDR-SERVERS.ARPA (operated by LACNIC)
E.IN-ADDR-SERVERS.ARPA (operated by APNIC)
F.IN-ADDR-SERVERS.ARPA (operated by RIPE NCC)

One further update will be posted here in the coming days regarding the addition of the DS record for IN-ADDR.ARPA to the parent zone.