Your public IP address is the number your whole home or office shows to the internet — the address websites see, log and (sometimes) block. This free tool shows it instantly, together with the details attached to it: the city and region it points to, your internet provider, your time zone and the map coordinates of the connection. It loads your own IP automatically the moment the page opens, using the ipwho.is geolocation service, and the lookup box below it checks any other IPv4 or IPv6 address the same way — handy for reading server logs, checking a suspicious address, or confirming that your VPN is really connected.
How the IP checker works
When the page loads, the tool asks the ipwho.is service about the connection the request came from — which is yours. The service answers with the IP address itself plus the geolocation and network data attached to it: country, region, city, postal code, approximate latitude and longitude, time zone, and the provider block (ISP, organisation and the network’s AS number). When you type an address into the lookup box, the tool first validates it — four numbers 0–255 for IPv4, hex groups and colons for IPv6 — and then asks the same service about that address instead. Nothing is stored: the address you look up goes to the geolocation service and the result comes straight back to your screen.
What the details mean
The location is where the provider registered or routes that IP block — usually your city or a nearby one, never your house. If you use a VPN, you will see the VPN server’s city instead, which is exactly how you verify a VPN is working: load this page before and after connecting and compare. The ISP is the company that owns the connection — your home broadband provider, your mobile carrier, or a hosting company when the address belongs to a server. The ASN is that network’s number in the global routing system, the detail support teams ask for when a whole network is blocked somewhere.
Why your IP matters
Websites use your IP to guess your country (for language, prices and legal notices), to limit abuse (rate limits, region blocks, fraud checks) and to fill their logs. That is also why an IP can be “guilty by association”: on shared connections — offices, schools, mobile networks, VPNs — many people exit through the same address, and one person’s behaviour can get the address flagged for everyone. If a site claims you are in the wrong country or blocks you outright, checking your IP and its location here is the first step of the diagnosis: a wrong city means your provider is routing you oddly, or a VPN or proxy is on that you forgot about.
What Is My IP – frequently asked questions
Is this tool free?
Yes — free, no sign-up, and your own IP loads automatically. Lookups of other addresses are free too.
Does the location show my exact address?
No. IP geolocation points to the city or area your provider assigned the address to — it cannot find your street or house, and neither can any website that only sees your IP.
Why does it show a different city from where I am?
Providers route traffic through regional hubs, and mobile networks often exit in another city entirely. A VPN changes the answer completely — that is how you can tell one is active.
Can I look up someone else’s IP?
You can look up any public IP address and see its rough location and provider — the same information every website that IP visits already sees. Private addresses (like 192.168.x.x) exist only inside a local network and return no location.
Related tools
Cuál Es Mi IP — versión en español · IP Subnet Calculator · TV Show Finder & Episode Guide.
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