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
2026-10-14-1791936359-rdns.json.gz
sha1:546f8fe7c9afc9a519e93ae3864c7f65a91088fc
10.9 GB Oct. 14, 2026
2026-10-07-1791331612-rdns.json.gz
sha1:385ec00243a02acee913ff2b18067230fd2ca2d2
10.9 GB Oct. 7, 2026
2026-09-30-1790726921-rdns.json.gz
sha1:28678df7b48e1342d9e56ab39320492187afb83e
11.0 GB Sept. 30, 2026
2026-09-23-1790121966-rdns.json.gz
sha1:ec024016366489b2999191a6da1e540959dea721
10.9 GB Sept. 23, 2026
2026-09-16-1789517146-rdns.json.gz
sha1:7779974b35ab5d3ed58794e92916779575473f74
11.0 GB Sept. 16, 2026
2026-09-09-1788912408-rdns.json.gz
sha1:9b365bda66b4fb340384dea43923dd5934513000
10.8 GB Sept. 9, 2026
2026-09-02-1788307527-rdns.json.gz
sha1:1f3431df9391475553bddd1807115afcb350e05c
10.9 GB Sept. 2, 2026
2026-08-26-1787702716-rdns.json.gz
sha1:bbd40cfe09c75000fad31ed2d1ab17f131d163bd
10.9 GB Aug. 26, 2026
2026-08-19-1787097973-rdns.json.gz
sha1:7c533b5eb3093ac746ac46b6843b7b554c38b329
11.0 GB Aug. 19, 2026
2026-08-12-1786493121-rdns.json.gz
sha1:ce308cb9bfe73405c6a92da2c5daaf9be6bce5eb
11.1 GB Aug. 12, 2026