ARIN and ICANN are planning changes to the infrastructure which supports
the IPv4 Reverse DNS, the part of the DNS which provides the ability to
look up an IPv4 address and convert it to a name.
With this change the IN-ADDR.ARPA zone will move to new, dedicated
nameservers, five operated by the Regional Internet Registries (RIRs)
and one operated by ICANN.
ARIN has carried out the DNS zone maintenance function for IN-ADDR.ARPA
since 1997. This function will transition in February 2011 to ICANN and
will be managed concurrently with the central assignment of IPv4 address
space to RIRs. Once the IN-ADDR.ARPA zone is being maintained by ICANN
it will also be signed using DNS Security Extensions (DNSSEC), providing
end-users with the ability to validate answers to reverse DNS queries.
For more information and details please see:
http://blog.icann.org/2010/12/planned-changes-to-ipv4-reverse-dns-infrastructure/
and
http://in-addr-transition.icann.org/.
Regards,
Communications and Member Services
American Registry for Internet Numbers (ARIN)
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