DNS IPv4 PTR responses

Study Details

Study

Reverse DNS (RDNS)

Author

Project Sonar | Rapid7

Contact

Rapid7 Labs

Dataset Details

This dataset includes the responses to the IPv4 PTR lookups for all non-blacklisted/private IPv4 addresses.

Dataset Schema

Full Dataset Listing

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File Name SHA1-Fingerprint Size Updated At
2026-07-08-1783469238-rdns.json.gz
sha1:7f42fed1135c3333f18847329227c80474c792a8
11.1 GB July 8, 2026
2026-07-01-1782865455-rdns.json.gz
sha1:1fb8bc36dec095e765d1aef2091864b6e53631bb
11.1 GB July 1, 2026
2026-06-24-1782259644-rdns.json.gz
sha1:dd32e4260a779a2ce3a9e3f59cb48241991d5aeb
11.0 GB June 24, 2026
2026-06-17-1781654799-rdns.json.gz
sha1:41256c106b9894d78561c703c4f8d9665a61c4ab
11.0 GB June 17, 2026
2026-06-10-1781050075-rdns.json.gz
sha1:f4d94c61cfa5b8a860cda747864de90bca8577da
11.0 GB June 10, 2026
2026-06-03-1780445169-rdns.json.gz
sha1:20876158d0721eb5a1ffc00940e19fd85dca040d
11.0 GB June 3, 2026
2026-05-27-1779840424-rdns.json.gz
sha1:5143956dba1a20ecad72d6355f7ed498cf162058
11.0 GB May 27, 2026
2026-05-20-1779235645-rdns.json.gz
sha1:abdcdbaad92add896feb596f86482f9cd5c71486
11.0 GB May 20, 2026
2026-05-13-1778630829-rdns.json.gz
sha1:1245d722ddacd976d710d2340dc4db00de7aa431
11.0 GB May 13, 2026
2026-05-06-1778025981-rdns.json.gz
sha1:1eed616a321876f73c084388fd8b05494d0a73d1
11.0 GB May 6, 2026