IP address lookup

Where an address is placed, and which network announces it.

IP geolocation lookup

Resolve any public IP address to its country, city, coordinates and network operator.

IP address

About IP geolocation

Look up any public IPv4 or IPv6 address to find where it is placed, its coordinates and time zone, and which network operator (ASN) announces it. The lookup runs against an offline copy of the MaxMind GeoLite2 database on our server, so the address you type is not sent to a third party.

Geolocation is an estimate built from where address blocks are used, not a location the device reported. Reverse DNS, the announced prefix and the network's classification help tell a residential line from a data centre, a mobile carrier or a VPN provider.

Where does the location data come from?

From a local copy of the MaxMind GeoLite2 city and ASN databases on our own server, refreshed regularly. The address you type is looked up there and nowhere else. Coordinates are the centre of the area the database assigns, with an accuracy radius in kilometres; a radius of several hundred kilometres means the database only knows the country or region.

Why is the location of an address wrong?

The database knows where an operator uses a block of addresses, not where a particular device is. Mobile carriers and VPN providers appear at their hubs, corporate networks at the head office, and blocks that changed hands take time to be updated. Country and region are usually right, the city is a guess, and a street-level location is never available from an IP address.

Can I look up a private or reserved address?

Yes, and the result names the range instead of a place: private networks such as 10.0.0.0/8 and 192.168.0.0/16, link-local, loopback, carrier-grade NAT space, documentation ranges and the IPv6 equivalents. These addresses are never routed on the internet, so they have no geolocation and no ASN.

What does the reverse DNS name tell me?

The name the address's owner has published for it. ISPs often encode the region or the access technology in it, hosting companies name their servers, and VPN exits frequently have none. Together with the ASN and the announced prefix it helps tell a home line from a data centre.