The Relay dataset lists egress IP ranges of consumer privacy relays, most notably Apple iCloud Private Relay, which hide the true client address behind a two-hop architecture.
Relay users are regular consumers rather than fraudsters, so telling relays apart from proxies and VPNs prevents false positives in fraud and abuse systems.
The data
Inside the file
One record per row, a commented header line first. This is what ipregistry-relay.csv looks like:
# ip_start,ip_end2a02:26f7:c34a:8099:0:0:0:0,2a02:26f7:c34a:8099:ffff:ffff:ffff:ffff2a02:26f7:b389:a05c:0:0:0:0,2a02:26f7:b389:a05c:ffff:ffff:ffff:ffff2a02:26f7:c8d0:e810:0:0:0:0,2a02:26f7:c8d0:e810:ffff:ffff:ffff:ffff2a02:26f7:f6cc:a31d:0:0:0:0,2a02:26f7:f6cc:a31d:ffff:ffff:ffff:ffff172.225.169.245,172.225.169.245The rows above come from the free sample. Every build ships with MD5, SHA-1, SHA-256 and SHA-512 checksums so you can verify downloads.
| Column | Description |
|---|---|
ip_start | First IP address of the range, IPv4 or IPv6. |
ip_end | Last IP address of the range, inclusive. |
The MMDB variant carries the same data in a memory-mapped binary tree, compatible with the standard MMDB reader libraries available for every major programming language.
Downloads
Available formats
| Format | Description | Size |
|---|---|---|
| CSV | Plain text, one range per line. Import into any database or data warehouse. | 18.0 MB |
| CSV (zipped) | Same file compressed for faster downloads and cheaper storage. | 1.8 MB |
| MMDB | Binary format for instant lookups with standard MMDB readers. | 674 KB |
Use cases
What you can build
- Avoid flagging iCloud Private Relay users as fraudulent
- Adjust geolocation confidence for relayed connections
- Account for relay adoption in audience and ad measurement
- Fine-tune rate limits for shared relay egress points
Related use case: Cyber security
Datasets are available with an Ipregistry subscription and download from your dashboard, or over a stable URL for automated syncs. Prefer live data? The same intelligence is served by the Ipregistry API.