How accurate is the city lookup?

For fixed connections the country is almost always right, but the city may be off by tens of kilometres because the databases rely on the ISP’s routing blocks. Mobile data is often imprecise, you may appear in another city than where you physically are.

An Autonomous System Number identifies the network that announces your IP block on the internet, typically your telco or a large enterprise. The number is useful when troubleshooting routing or when you want to know who actually carries the traffic.

Does the tool store my IP?

No. The lookup runs in your browser and the result disappears the moment you close the tab. We keep no log of lookups.

Why is my IP different on mobile than on Wi-Fi?

The two networks each have their own egress router and address pool. Mobile carriers usually give you a shared CGNAT address, while your broadband gets a near-static address from the home ISP.

IP Information - Find Your IP Address & GeoIP Details

About the IP lookup

Leave the field empty to see your own public IP address, or enter an IP to look up information about it. The lookup uses the external service ipapi.co.

GeoIP data is approximate. The location usually points to the internet provider’s region, not the exact physical address.

About this tool

IP info shows which IP address the world sees when you are online, who owns it, which country and city the connection appears to come from, and which internet service provider (ISP) routes the traffic. This is useful when troubleshooting VPNs, checking whether your DNS setup leaks geographic location, or simply confirming that your provider has changed network blocks. All lookups go over HTTPS against open geolocation services and the result appears immediately. We log nothing, the tool is just a friendly view of information that is already publicly visible about your connection.

How to use it

Open the page, the tool detects your IP automatically.
See country, city, ASN and ISP in the table below the address.
Click "Copy" to put the IP on your clipboard, handy when filing a support ticket.
Switch VPN server or mobile data and reload the page to confirm the IP actually changes.

Examples

Typical IPv4 address

Input85.191.100.42

OutputNorway / Oslo / AS2116 (Telenor)

IPv6 address

Input2a02:2121:2c1:1234::1

OutputNorway / Bergen / AS2119 (Telia)

Both IPv4 and IPv6 are shown if you have both. Many VPNs leak IPv6, verify both belong to the same country.

Common use cases

Confirm that your VPN really changes your geographic location.
Diagnose DNS or IPv6 leaks.
Include your IP and ASN when filing a support ticket.
See which city your mobile network connects you from.
Verify that firewall rules match the right outbound address.

Frequently asked questions

How accurate is the city lookup?: For fixed connections the country is almost always right, but the city may be off by tens of kilometres because the databases rely on the ISP’s routing blocks. Mobile data is often imprecise, you may appear in another city than where you physically are.
What is an ASN?: An Autonomous System Number identifies the network that announces your IP block on the internet, typically your telco or a large enterprise. The number is useful when troubleshooting routing or when you want to know who actually carries the traffic.
Does the tool store my IP?: No. The lookup runs in your browser and the result disappears the moment you close the tab. We keep no log of lookups.
Why is my IP different on mobile than on Wi-Fi?: The two networks each have their own egress router and address pool. Mobile carriers usually give you a shared CGNAT address, while your broadband gets a near-static address from the home ISP.

Technical background

Geolocation lookups combine public registries like RIPE, ARIN and APNIC with commercial databases from vendors such as MaxMind or IPInfo. Address blocks are handed out by regional registries, and each ISP decides where to route them, so an IP can end up used in a very different city than the registration implies. IPv4 is 32-bit (4.29 billion addresses) and has been scarce since 2011, while IPv6 is 128-bit and solves the exhaustion problem. Since many ISPs now use Carrier-Grade NAT (CGNAT), thousands of subscribers share the same public IPv4 and only port numbers separate you. That is also why a security alert about "suspicious activity" from a given IP rarely points to a single person.