// GEO-LOOKUP
IP Lookup
Geolocate any IPv4 or IPv6 address. See its network owner, ASN, reverse DNS, and approximate location.
// How IP geolocation works
IP lookup takes any public IP address and returns the country, region and city it's associated with, along with the network that owns it. It works by matching the address against geolocation databases that map blocks of IP addresses to the organisations and regions they're registered to.
Alongside location, a lookup reveals the ASN (Autonomous System Number) and the ISP or hosting provider — useful for identifying whether an address belongs to a home broadband network, a data centre, or a cloud provider. A reverse DNS (PTR) record, when present, shows the hostname the address maps back to.
Accuracy is best at the country level and decreases for region and city. IP geolocation cannot identify an individual or a street address; it describes the network, which may be located far from the actual user — especially for mobile carriers and VPNs.
// Frequently asked questions
- How accurate is IP geolocation?
- Country-level accuracy is very high; city-level is roughly 50–80%. Mobile and VPN addresses are the least accurate because the routing hub can be far from the user.
- Can I find someone's home address from their IP?
- No. IP geolocation only narrows down to a city or region and identifies the ISP. Linking an address to a specific person requires the ISP and legal process.
- What is an ASN?
- An Autonomous System Number identifies the network operator that announces a block of IP addresses to the internet — for example an ISP, university or cloud provider.
- What is reverse DNS?
- Reverse DNS (a PTR record) maps an IP address back to a hostname. Mail servers often check it, and it can hint at who operates the address.
- Can I look up IPv6 addresses?
- Yes. This tool accepts both IPv4 and IPv6. Private and reserved ranges are rejected because they aren't routable on the public internet.