IP Address Lookup — Free Online Tool

The IP Address Lookup resolves an IPv4 or IPv6 address to the information registered against it: the owning network, the ISP or hosting provider, the autonomous system number, and an approximate geographic location. Enter nothing and it looks up the address you are currently connecting from.

The accuracy question is the one worth understanding before acting on the result. IP geolocation is inference from registration records and network routing data, not measurement. Country-level accuracy is typically very good; city-level is a reasonable guess that is frequently wrong, particularly on mobile networks where traffic can egress hundreds of kilometres from the handset, and on any connection behind a VPN or corporate proxy, where you are seeing the exit node rather than the person. Treat a city as a hint and never as identification.

Where the data is genuinely reliable is the network side. The ISP, hosting provider, and ASN come from registry records, and those are what make the tool useful in practice: confirming which provider an address belongs to, checking whether traffic in your logs is coming from a residential ISP or a datacentre range, verifying that a server resolves to the host you think it does, or working out whether your own connection is going out through a VPN.

Lookups query a public IP information API; the address you enter is used only to fetch that result and is not stored.

Our IP Address Lookup is completely free to use with no signup required. For this tool, processing runs in your browser — your files and data stay on your device and are not uploaded to our servers.

Whether you are a developer, designer, student, or business owner, this tool is designed to save you time and make your workflow more efficient. Bookmark this page to access it whenever you need it — it will always be free.