How accurate is the geolocation?

IP geolocation is accurate to the city level in most cases. It shows the location of your ISP's infrastructure, which is usually near your actual location but not exact.

Can I look up any IP address?

Yes. Enter any public IPv4 address to see its geolocation details.

Why does my IP show a different city?

IP geolocation maps to your ISP's infrastructure, not your exact location. It is common for the result to show a nearby city rather than your exact location.

Does this tool track my IP?

The IP lookup uses a third-party geolocation API to resolve location data. Your IP address is sent to this service for the lookup.

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Look Up Any IP

What this tool does

Look up the network and approximate geography of any public IP address. Returns ASN (autonomous system number, the network-level identifier), ISP / hosting provider, country, region, and approximate city. Defaults to your own IP when no address is entered.

What an IP address actually identifies

An IPv4 or IPv6 address identifies a network endpoint at a specific moment. It does notidentify a person, a device, or even a house. ISPs assign IPs from pools, and your home router's public IP today might belong to your neighbor next month. Mobile networks rotate IPs across cell towers continuously. Corporate networks NAT many devices behind a single public IP.

That fluidity matters when interpreting any IP-based data: an IP that hit a server two weeks ago may now be assigned to someone completely unrelated. IP-based access controls, rate limits, and analytics all need to account for this.

The ASN is the most stable thing about an IP

Every IP block is registered to an Autonomous System — an ISP, a hosting provider, a corporation, a university. The ASN tells you which network owns the block, regardless of which specific IP within the block is currently assigned to whom.

Practical signals from an ASN:

Hosting provider ASNs (AWS, Cloudflare, DigitalOcean, Hetzner) — the IP belongs to a server, not a residential connection. Useful signal for separating bot traffic from real users.
Residential ISP ASNs (Comcast, Verizon, Spectrum) — the IP is a home internet connection. Most legitimate web traffic comes from these.
Mobile ASNs (T-Mobile, AT&T Wireless) — the user is on a phone or tablet via cellular. Often shared NAT, often geographically broad.
VPN / proxy ASNs — the user is tunneling through a known commercial VPN or proxy service. Could be privacy-conscious users; could be fraud attempts.

Geolocation is approximate, by design

IP geolocation is performed by databases (MaxMind, IPInfo, IP2Location) that aggregate ISP-published location data, network triangulation, and other signals. The accuracy varies wildly:

Country-level — usually 95%+ accurate.
Region / state — typically 80-90% accurate for residential IPs in developed countries, much less for mobile.
City— 60-75% accurate at best, often showing the city of the ISP's regional hub rather than the user's actual location.
Lat/long— marketing claims of “precise geolocation” from IP are usually overpromising. Real precision comes from device GPS, not IP.

Mobile IPs lie a lot

A user in Boston on T-Mobile may show as Seattle, Dallas, or Atlanta depending on which T-Mobile data center their traffic happens to route through that day. If geolocation matters for your application, supplement IP data with device-side location (with consent) or zip code (entered by the user).

Privacy considerations

The lookup is a public DNS / WHOIS query — the same information any server can collect from any incoming request. The tool does not log lookups beyond what is needed to return your result. Looking up your own IP here does not expose anything that a website you visit does not already see.