---
id: source-arin
type: source
title: ARIN RDAP (American Registry for Internet Numbers)
source_type: internet-registry
publisher: American Registry for Internet Numbers
url: https://rdap.arin.net/
independence: official
availability: available
accessed: 2026-09-11
limitations: RDAP reports the registered administrative details of an IP allocation. It is authoritative for who holds a range, and indicative but not conclusive for where a particular server physically sits.
updated: 2026-09-11
---
The regional internet registry for North America. Its RDAP service is the authoritative public record of IP address allocations and is queryable by anyone over HTTPS.