IP Geolocation Lookup

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Understand IP Geolocation Lookup

Looks up the approximate geographic location, ISP, and network owner behind an IPv4 address, or your own public IP if you leave the field empty.

How it works

IP addresses carry no location data. Geolocation works by joining the address against registry records — which block was allocated to which organization by ARIN, RIPE, or APNIC — and then against commercial datasets built from ISP-reported ranges, latency measurements, and user-submitted corrections. The ASN in the result is the autonomous system number, the identifier of the network that announces the route to that address in BGP, and it is the most reliable field returned because it comes from routing data rather than inference. This tool queries the public ipapi.co API from your browser, so the address you look up leaves your machine.

When to use it

  • Checking which country a server or visitor IP resolves to before writing a geo-routing or geo-blocking rule
  • Identifying whether an address in your logs belongs to a hosting provider, a VPN exit, or a residential ISP by looking at the ASN and organization
  • Confirming your own public IP and its apparent country while testing a VPN or proxy configuration
  • Debugging a CDN that appears to be serving the wrong regional edge

Watch out for

  • Country accuracy is high; city accuracy is not. ISPs frequently route subscribers through a regional hub, so the reported city is often the hub, not the subscriber — never use it as an identity or fraud signal on its own.
  • This tool sends the address to a third-party API (ipapi.co) rather than resolving it locally. Do not paste addresses you are contractually required to keep inside your own network.
  • IPv4 only. IPv6 addresses, private ranges (10.x, 172.16–31.x, 192.168.x), and CGNAT space (100.64.0.0/10) have no meaningful public geolocation.
  • The public API is rate limited. A burst of lookups will start returning errors rather than results.

Not the right tool for: Legal identification of a person. IP geolocation is an estimate about a network, not an address for a subscriber; law enforcement gets that from the ISP under subpoena, not from a lookup.

Frequently Asked Questions

How accurate is IP geolocation?

Country-level accuracy is ~99%. City-level accuracy is typically 70–80% for residential connections. ISPs often route traffic through regional hubs, so the city shown may be the ISP's hub city rather than the subscriber's actual location.

Why does my VPN change my apparent location?

VPNs route your traffic through servers in other locations. IP geolocation sees the VPN server's IP, reporting its location (e.g., Netherlands) instead of yours. This is how VPNs bypass geo-restrictions.

What does ASN mean?

ASN (Autonomous System Number) identifies a network operated by a single organization (ISP, company, CDN). For example, AS13335 is Cloudflare. ASNs are used for routing policies and are helpful for identifying proxies, hosting providers, and enterprise networks.

How to Use IP Geolocation Lookup

  1. Paste or type your input in the input area above.
  2. The tool processes your input automatically or click Run.
  3. Copy or download the result using the action buttons.
  4. Use Ctrl+Enter to run quickly from the keyboard.