IP geolocation

Find the country, city, ISP, and ASN for any IPv4 address, IPv6 address, or domain.

Related tools

DNS lookup

A, AAAA, MX, TXT, NS

WHOIS

Domain registration

Blacklist check

Spamhaus, SORBS, more

About IP geolocation

IP geolocation maps an IP address to a likely physical location — typically country, region, and city. The data comes from a combination of registry records (which addresses are allocated to which ISP), latency measurements, and ISP-published location data.

Accuracy varies wildly by IP type. Residential ISP IPs are usually accurate to within ~50km. Hosting and content provider IPs (AWS, GCP, Cloudflare, GitHub Pages) reflect the datacenter location, not any user's location — checking an AWS IP and seeing "Ashburn, Virginia" doesn't mean a user is there.

The ASN (Autonomous System Number) is often more useful than the city for understanding who owns an IP — AS15169 is Google, AS13335 is Cloudflare, AS16509 is Amazon. If you're investigating traffic in your server logs, the ASN tells you whether it's a real user, a cloud provider, or a known network.