RIPE Reverse DNS Zones

“This dataset consists of a daily snapshot of the reverse zones (in-addr.arpa and ip6.arpa) as published by the RIRs on their public FTP servers in the /pub/zones/ directory. The RIRs use this data operationally. The zones under in-addr.arpa and ip6.arpa are assembled from these files.”

• Source
• Data URL
• Terms of Service