IP address lookup: find the location, ISP and network of any IP
To look up an IP address, type an IPv4 or IPv6 address into the box and press Lookup. To see your own, press Show my IP address. The result shows the approximate city, region, country, postal code, time zone, organisation or ISP, ASN, coordinates, the reverse-DNS name and, when ipinfo.io has one, the hostname, with a link to a map of the approximate area. Treat the location as an area estimate, never an exact position.
An IP address lookup is a query that matches an IP address to the network that holds it and an estimated place. This tool is not fully offline: the address is checked and classified in your browser, but the location data comes from ipinfo.io, and your browser contacts it directly, only when you press a button. Private and reserved addresses are explained locally and never sent.
A lookup finds the owner of a network, not a person. To see what a website sends back rather than where it is, use the HTTP header viewer, and to find the IP address behind a domain name, the DNS lookup tool.
Table of Use: what to enter and what you learn
| Goal | What to do | What you see |
|---|---|---|
| Find my public IP address | Press Show my IP address | A card with your IP, approximate place, ISP and ASN |
| Check that a VPN is working | Press Show my IP address with the VPN on, then reload, turn the VPN off and press it again | The address, country and organisation change to the VPN's |
| Trace a suspicious login or server hit | Paste the address and press Lookup | Country, region, organisation and ASN, often a hosting provider or ISP |
| Check a list of addresses from a log | Paste up to 50 into Bulk IP lookup and press Lookup All | A table of location and network, plus an Export CSV button |
| Understand a 192.168 or 10.x address | Enter it and press Lookup | “Private network (RFC 1918)”, with no request sent |
| Read an IPv6 address | Enter it in short or long form | The compressed form, the Full IPv6 form and the Reverse DNS name |
For the time at the location you find, use the time zone converter or the world clock.
Features of this IP location lookup
- IPv4 and IPv6. Compressed, full and bracketed IPv6 forms are accepted, and an IPv4 address carried inside an IPv6 one is looked up as IPv4. A zone index, a CIDR range, leading zeros and domain names are refused with an explanation.
- Local range checks. Private (RFC 1918), carrier-grade NAT, loopback, link-local, documentation, multicast, benchmarking, reserved and IPv6 unique-local addresses are recognised in your browser, with a plain-English note.
- Detail card. City, region, country, postal code, time zone, organisation or ISP, ASN, approximate coordinates and, when returned, hostname, each with a copy button where useful, plus an anycast warning when the same address is announced from many places.
- Bulk lookup. Up to 50 addresses, separated by lines, spaces or commas, with duplicates removed and three lookups at a time. Export CSV saves ip_lookup_results.csv with the range type, location, organisation, coordinates, hostname and a note for each row.
- Error handling. If ipinfo.io is blocked by a firewall or an ad blocker, the page says so on each row; if its free limit is reached, a bulk run stops early with a note.
What is sent, and to whom
Nothing is requested when the page loads. Pressing Show my IP address, Lookup, Lookup All or one of the Try examples that is a public address sends a request from your browser straight to ipinfo.io, which receives the address being looked up and, as with any website, your own IP address. ZipConvert receives neither. The map button is an ordinary link to OpenStreetMap that carries the approximate coordinates in its address, and it only loads if you click it.
IPv4 and IPv6 in brief
IPv4 uses 32-bit addresses such as 8.8.8.8, about 4.3 billion, and IANA handed out its last free blocks in 2011, which is why many networks share addresses through NAT. IPv6 uses 128-bit addresses such as 2001:4860:4860::8888, written in hexadecimal with :: replacing a run of zeros. Many devices have both; Show my IP address reports whichever your connection uses.
What it does not do
It does not look up domain names, ping or trace a route, scan ports or identify a person. To find out who registered a domain, use the WHOIS lookup; for what runs on a port number, the TCP and UDP port reference.
How to look up an IP address, step by step
- To see your own address, press Show my IP address at the top.
- To look up another, type it into Look up an IP address, for example 8.8.8.8 or 2606:4700:4700::1111, or click one of the Try examples.
- Press Lookup or the Enter key.
- Read the location, organisation, ASN and time zone, and use the clipboard icons to copy a value.
- For a list, paste the addresses into Bulk IP lookup, press Lookup All, then use Export CSV.
If the address came from a log with a browser string beside it, the user agent parser decodes that string, and the SSL certificate checker shows a site's certificate. Mail hosts listed by the email validator can be resolved to addresses with the DNS tool and looked up here.
Who can use it
- Site owners and administrators checking where requests in a server log come from.
- Security analysts and support staff doing a first check on an address in a login alert.
- Remote workers and VPN users confirming the address and country the internet sees.
- Students and network learners exploring private ranges, ASNs, IPv6 notation and reverse DNS.
FAQs
How do I find my public IP address?
Press Show my IP address at the top of the tool. Your browser does not know its own public IP, because only servers you connect to see it, so the page asks ipinfo.io, which replies with the address your request came from and its location data. Nothing is requested until you press the button. Behind a VPN or proxy, the address shown is that service's.
How accurate is IP geolocation?
The country is usually right, and the city is often right or nearby, but the coordinates are an estimate, typically the centre of a city or of the area an ISP serves, not a street address. Mobile networks, corporate networks, VPNs and anycast services such as public DNS resolvers can place an address hundreds of kilometres from where the device really is.
Why does my IP show a different city?
ISPs route traffic through regional hubs and assign addresses from pools registered to those hubs, so your IP is often located where your provider's equipment is rather than where you are. A VPN, proxy, iCloud Private Relay or a mobile connection will show the location of that service instead.
Can someone find my home address from my IP?
Not from geolocation data. A lookup like this one shows only an approximate area and the network that owns the address. Only your internet provider can link an IP address and time to a specific customer, and they normally disclose that only to law enforcement or under a court order.
Why can't I look up 192.168.x.x or 10.x.x.x addresses?
Those are private addresses (RFC 1918), reused inside millions of home and office networks behind routers, so they have no public owner or location. The tool recognises private, carrier-grade NAT, loopback, link-local, multicast, documentation and other reserved ranges, and explains them without sending anything to the lookup service.
Where does the data come from, and what is sent?
Location and network data come from ipinfo.io. Nothing is requested when the page loads. When you press Show my IP address, Lookup or Lookup All, your browser contacts ipinfo.io directly, so ipinfo.io receives the address you looked up and, as with any website, your own IP address. ZipConvert does not receive or store either. Lookups are subject to ipinfo.io's free limit for your connection.
What is an ASN?
An Autonomous System Number identifies a network that runs its own routing on the internet, such as an ISP, a cloud provider or a large company. For example AS15169 is Google and AS13335 is Cloudflare. It tells you which organisation operates the address even when the city is uncertain.
Can I look up a domain name or website here?
No. This tool takes IP addresses only and says so if you enter a domain name. To find the IP address of a domain, look up its A or AAAA record with the DNS lookup tool, then paste the result here. The Reverse DNS name shown for an address is the name used to ask DNS for its hostname, and it is worked out in your browser.