IP Address Lookup
Find physical geolocation, ISP, ASN, and organizational details for any IPv4 or IPv6 address.
About IP Geolocation
IP Geolocation relies on databases maintained by Regional Internet Registries (RIRs) and third-party telecom data providers. When an Internet Service Provider (ISP) is assigned a block of IP addresses, they document the general geographic region those IPs will serve.
Accuracy Note: IP geolocation is rarely accurate to the street level. It typically resolves to a city, regional data center, or the ISP's nearest routing hub. Mobile networks and VPNs will show the location of the provider's exit node, not the user's actual physical location.
Our IP Geolocation Lookup returns the approximate physical location of any IPv4 or IPv6 address — country, region, city, coordinates and timezone — along with the ISP and organisation that operate it.
What is IP Geolocation?
Providers build their databases from several sources: registry allocation records showing which organisation holds a block and in which country, routing data, latency measurements between known points, and information supplied by ISPs themselves.
Accuracy varies sharply by granularity. Country-level results are correct roughly 95 to 99 per cent of the time. City-level accuracy is far weaker, often 50 to 80 per cent, and the coordinates returned are frequently the centre of a city or even a country rather than a real address — which has caused genuine harm to people living at those default coordinates.
- Estimates location from registry, routing and latency data
- IP addresses contain no inherent location information
- Country accuracy is high; city accuracy is considerably lower
- Coordinates are often a regional centroid, not a real address
- VPNs, proxies and mobile carriers routinely defeat it
Why IP Geolocation Matters
In security work it is a triage signal. A login from a country where you have no staff, or traffic from a region you do not serve, is worth investigating. It is also useful in incident response for characterising where an attack originated, with the important caveat that the apparent origin is frequently a rented server rather than the actual operator.
- Drives content licensing and regional restrictions
- Used in fraud detection to flag improbable login locations
- Helps characterise the origin of attack traffic
- Enables regional pricing, language and currency selection
- Country-level compliance requirements often depend on it
How This IP Geolocation Lookup Works
- Validates the IP address input against format and SSRF safety checks
- Queries geolocation data for the address
- Returns country, region, city, coordinates and timezone
- Retrieves the ISP, organisation and autonomous system details
- Indicates where the result is likely to be imprecise
How to Use the IP Geolocation Lookup
- Enter an IPv4 or IPv6 address in the input field
- Run the lookup to retrieve location and network data
- Treat the country as reliable and the city as approximate
- Check the ISP and organisation fields, which are often more useful than the location
- For investigation, combine with WHOIS and ASN data rather than relying on location alone
Understanding Your Geolocation Results
Different fields carry very different levels of confidence:
| Field / Value | Meaning |
|---|---|
Country |
The most reliable field, typically 95 to 99 per cent accurate. Derived largely from registry allocation records, which are authoritative. |
Region and city |
Considerably less reliable. City-level accuracy commonly falls between 50 and 80 per cent, and can be much worse for mobile and satellite ranges. |
Coordinates |
Frequently a regional or national centroid rather than a real location. They should never be treated as a physical address. |
ISP |
The internet service provider operating the address. Generally accurate and often more useful than the location itself. |
Organisation |
The entity the block is allocated to. For corporate ranges this can identify the company directly; for consumer ranges it merely repeats the ISP. |
ASN |
The autonomous system number routing the address. Reliable, and the best starting point for understanding what kind of network it is. |
Hosting or VPN |
Whether the address belongs to a datacentre, VPN or proxy range. Often the single most useful signal, since it indicates the location is likely meaningless. |
Common Problems & How to Fix Them
Best Practices
- Trust country-level data and treat city-level data as approximate
- Never present returned coordinates as a physical address
- Use the ASN and organisation fields, which are often more informative than location
- Treat geolocation as one signal among several, never as proof
- Prefer additional verification over hard blocking on location
- Check whether the address belongs to a hosting or VPN range before drawing conclusions
- Expect lower accuracy on IPv6 and mobile carrier addresses
Security Recommendations
- Never use geolocation as a sole authentication or authorisation factor, since a VPN defeats it in seconds
- Treat an impossible-travel pattern as a stronger signal than any single location
- Remember an attacker apparent country is usually just where they rented a server
- Be aware that blocking entire countries excludes legitimate users and is trivially bypassed by determined attackers
- Handle IP-derived location as personal data under GDPR and similar regimes, since an IP address is generally treated as identifying
- Combine location with hosting and VPN detection, which is frequently the more actionable signal