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.
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 |
Latest build: 286,932 records. Files are regenerated every day and published with MD5, SHA-1, SHA-256 and SHA-512 checksums so you can verify every download.
What's inside
The CSV file starts with a header line and contains one record per row, with the following fields:
| Column | Description |
|---|---|
ip_end | Last IP address of the range, inclusive. |
ip_start | First IP address of the range, IPv4 or IPv6. |
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.
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.