Free network tool

IP Address Lookup

Explore the country, network, ASN, prefix, hostname and available location details for any public IPv4 or IPv6 address.

Private by design Lookups run on our server. Repeated public results may be cached to improve speed and reduce unnecessary network requests.
1

Enter your lookup

Try a public IPv4 or IPv6 address. Private and reserved addresses are identified automatically.

2

IP Passport

Your result

Ready

Results will appear here

Run the lookup above to see a visual summary, plain-English explanations, copy and sharing options. Raw JSON remains available under Technical data.

What it checks

Understand the result before acting on it

These are the main signals used by this tool. Availability can vary by address, domain, registry and data source.

01

Approximate country and available region or city confidence

02

Network owner, ISP, ASN and announced network prefix

03

Reverse DNS, IP version and locally available routing context

01

Beginner steps

  1. Enter a public IPv4 or IPv6 address, or keep your own public IP already filled in.
  2. Review the country flag, ASN, provider, network prefix and available hostname.
  3. Open the permanent IP report when you need a stable link for support or troubleshooting.
02

Understand the limits

IP results describe a network allocation, not a person. Country results are usually stronger than city results, and a VPN, mobile carrier or corporate gateway can change what appears.

Next steps

Continue your investigation

Check privacy signals

Review whether the IP resembles a VPN, proxy, Tor exit or hosting network.

 Check blacklist reputation

Review current abuse evidence, risk score, source coverage and history.

 Check registration data

Open the WHOIS / RDAP record for the network allocation.

 Find the hostname

Run a reverse DNS lookup for the address.
?

Plain-English help

IP lookup FAQ for beginners

Can an IP lookup show an exact home address?

No. IP geolocation is approximate and usually identifies a country, region or city area rather than a street, building or person.

Why is the city sometimes wrong?

Mobile networks, VPNs, carrier gateways and ISP routing can make an address appear in a different city from the device using it.

What is an ASN?

An Autonomous System Number identifies the network that announces an IP range to the internet, such as an ISP, company, university or cloud provider.

Why does my IP change?

Many providers assign dynamic addresses. Reconnecting a router, changing networks, using mobile data or enabling a VPN can produce a new public IP.

Can two people have the same public IP?

Yes. Homes, offices and mobile networks can share one public IP through routers or carrier-grade NAT, while each device keeps a private local address.

What is the difference between a public and private IP?

A public IP is visible on the internet. Private addresses such as 192.168.x.x, 10.x.x.x and many local IPv6 ranges are used only inside a home, office or device network.

Learn more

Guide Your Phone Can Be “In” Two Places Online: Reconcile IP and Device Location

A website’s IP location and a phone or app’s device location can point to different places because they use different evidence. Use this two-location comparison method to test Wi-Fi, mobile data, VPN and managed-work connections, understand the result, and decide whether action is needed.

Read article Guide Why Does My Public IP Address Keep Changing?

Understand dynamic IP leases, router reconnects, mobile networks, CGNAT, IPv6 privacy addresses and when a static IP is useful.

Read article Guide AI Agents and Internet Privacy: What Data Do They Reveal?

Understand how browser-using AI agents handle IP addresses, cookies, accounts, prompts and website data—and how to use them safely.

Read article