What information does an IP lookup return?

An IP lookup returns the approximate city, region, country, latitude/longitude, ISP name, ASN, timezone, postal code, and whether the IP belongs to a hosting provider, anycast range, or anonymous network.

How accurate is IP geolocation?

Country-level accuracy is typically above 99%. City-level accuracy is lower — usually within 25–50 km — because ISPs often route traffic through regional hubs rather than the user's exact city.

Can I look up a domain name instead of an IP?

Yes. Enter a domain like example.com and it will be resolved to its IP address first, then the geolocation lookup runs against that IP.

An Autonomous System Number (ASN) identifies a network operator — typically an ISP, hosting provider, or large enterprise — that manages a block of IP addresses and controls its own routing policy on the internet.

Private by defaultRuns in your browser

IP address lookup

Enter any IP address or domain to see its location, ISP, ASN, and network details — or click Detect My IP to look up your own.

Quick samplesWell-known public IPs

IP Lookup

About this tool

An IP address identifies a network interface, and looking one up tells you who is responsible for the block it belongs to. The reliable part of the answer comes from registry data: the autonomous system number, the organisation that holds the allocation, and the network range. That information is authoritative because it comes from the regional internet registries. Geolocation is the unreliable part, and it is worth understanding why. There is no location field in the internet's plumbing — geolocation databases infer position from registry records, latency measurements, and self-reported data from ISPs. Accuracy is reasonable at country level, mediocre at city level, and effectively meaningless below that. A mobile IP frequently resolves to the carrier's gateway hundreds of kilometres away, VPN and proxy traffic resolves to the exit node, and corporate traffic often resolves to headquarters regardless of where the user sits. This tool looks up an IPv4 or IPv6 address or a domain name and returns the location estimate, ISP, ASN, and network details, and can detect your own public IP. Lookups are performed server-side against a geolocation provider.

No signup requiredRuns in your browserInstant results

How to use

1
Enter an IPv4 address, IPv6 address, or domain name in the input field.
2
Click Look Up — or click 'Detect My IP' to look up your own public IP automatically.
3
View the returned location, ISP, ASN, timezone, and other network details.

Why use this tool?

→
Look up the geolocation of a suspicious IP from your server logs.
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Find the ISP and ASN behind a domain or IP before making a connection.
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Detect your own public IP address and network details instantly.

ExamplesInput → output

Look up a public IP

Input8.8.8.8

OutputMountain View, California, US — Google LLC (AS15169)

Look up a domain

Inputcloudflare.com

OutputSan Francisco, California, US — Cloudflare (AS13335)

Detect own IP

Input(click Detect My IP)

OutputYour public IP, ISP, and approximate location

Common errorsAnd how to fix them

The location shown is wrong

Cause: Geolocation is inferred, not measured. Mobile networks, VPNs, corporate proxies, and CDNs all break the assumption that an address sits near its user, and registry records go stale when blocks are reassigned.

Fix: Treat country as reasonably reliable and city as a rough hint. Never make an access-control or compliance decision on IP geolocation alone.

My own IP differs from the one another site reports

Cause: You may have separate IPv4 and IPv6 addresses, and which one is used depends on the destination. A VPN, a corporate proxy, or carrier-grade NAT also changes what the outside world sees.

Fix: Check whether the two results are one IPv4 and one IPv6 address. Behind carrier-grade NAT, many customers share one public address, so the address is not specific to you at all.

A domain resolves to a datacentre rather than the business

Cause: Most sites sit behind a CDN or a cloud provider, so the address you see belongs to Cloudflare, AWS, or similar — not to the site's owner.

Fix: This is expected. To find the responsible party for a domain, use a WHOIS lookup on the domain itself rather than geolocating the address it resolves to.

Frequently asked questionsCommon questions answered

These answers explain common ip lookup tasks, expected input formats, and edge cases so both visitors and search engines can understand what this tool does.

What information does an IP lookup return?: An IP lookup returns the approximate city, region, country, latitude/longitude, ISP name, ASN, timezone, postal code, and whether the IP belongs to a hosting provider, anycast range, or anonymous network.
How accurate is IP geolocation?: Country-level accuracy is typically above 99%. City-level accuracy is lower — usually within 25–50 km — because ISPs often route traffic through regional hubs rather than the user's exact city.
Can I look up a domain name instead of an IP?: Yes. Enter a domain like example.com and it will be resolved to its IP address first, then the geolocation lookup runs against that IP.
What is an ASN?: An Autonomous System Number (ASN) identifies a network operator — typically an ISP, hosting provider, or large enterprise — that manages a block of IP addresses and controls its own routing policy on the internet.