Author

Geoff Huston

Geoff is Chief Scientist at APNIC, where he undertakes research on Internet infrastructure, IP technologies, and address distribution policies. among other topics. He is widely regarded as the preeminent researcher on IPv4 exhaustion, and is routinely referenced by international agencies and frequently quoted by the ICT media.

http://www.potaroo.net/

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IP address to organization name map

By on 28 Jan 2026

Mapping Internet number resources from IP addresses to organizations is straightforward using whois or RDAP, but listing all resources held by a given organization is far more challenging. This post explores a simpler, data-driven approach using RIR extended statistics and reg-id identifiers.

BGP in 2025

By on 8 Jan 2026

Geoff Huston’s annual analysis of BGP routing table growth for 2025 and some projections.

Where are you? A look at GeoIP

By on 16 Dec 2025

Are IP addresses the right tool for determining location? Examining location from the perspectives of geolocation providers, CDNs, content intermediaries, RIRs, satellite operators, and other stakeholders.

A second look at geolocation and Starlink

By on 25 Nov 2025

The initial analysis of the anomalous data for Starlink users in 20 economies led APNIC Labs to override the Starlink geolocation data that refers to those 20 economies. This second look at the situation in Yemen has given us a lot more confidence in the fidelity of the Starlink geolocation data.


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