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
2026-01-14-1768349271-rdns.json.gz
be4c02406833c4f5e4be989b46c8602db2cc2b64
11.2 GB Jan. 14, 2026
2026-01-07-1767744456-rdns.json.gz
a2e7ede3e1892f6c57a6686db124796abb29f2ef
11.1 GB Jan. 7, 2026
2025-12-31-1767139651-rdns.json.gz
84ebf4ea487f113512c9fff663ea8d2d8867e3bb
11.2 GB Dec. 31, 2025
2025-12-24-1766534847-rdns.json.gz
0eb1eb0eb81e4fb97510f15dc6adbe0c22b93f52
11.2 GB Dec. 24, 2025
2025-12-17-1765930037-rdns.json.gz
e7f4c3a710cdc2a679e258106617442068f9ee14
11.2 GB Dec. 17, 2025
2025-12-10-1765325241-rdns.json.gz
7525a4509af253dd59c3c09370157f34609cd49e
11.3 GB Dec. 10, 2025
2025-12-03-1764720353-rdns.json.gz
4b8cb50b8eb1a0d9932099b4f8f3752474715979
11.2 GB Dec. 3, 2025
2025-11-26-1764115571-rdns.json.gz
be1cf546d33c357fd0ee1ba71ad85d53881730e4
11.3 GB Nov. 26, 2025
2025-11-19-1763510826-rdns.json.gz
2a719ab9af9d5ff7c1783242e705e1675e4e853f
11.2 GB Nov. 19, 2025
2025-11-12-1762906094-rdns.json.gz
e9fc386c1ebd60ec4770e132b3a5374f6c9e14be
11.2 GB Nov. 12, 2025