2.1.4 Reverse Delegation in the RIPE Database

The RIPE Database is used as the management database to produce the DNS zones RIPE Internet Number Resources. It can provide the information for each delegated IPv4 and IPv6 range registered in the reverse DNS.

The information is stored in routing policy specification (RPSL) format as domain objects. The name of each domain object is the reverse DNS zone under in-addr.arpa or ip6.arpa or e164.arpa. The "nserver:" attributes in each domain object define the officially delegated DNS name servers- the “NS” in DNS zone contents.