How do I look up an IP address?

Type or paste the IP address into the box on this page and press Look up. DWM IP shows the organisation and ASN that run it, the registered network and owner, the abuse contact, the reverse DNS hostname and an approximate location.

Can I find out who owns an IP address?

You can find the organisation that owns or runs it: an internet provider, mobile carrier, hosting company, university or business, as registered with the regional internet registry. You can't find the individual customer using it; only the provider knows that.

Can an IP lookup find someone's exact location?

No. IP geolocation is approximate and usually points to the provider's network in a city or region, not a home. VPNs, proxies and mobile networks often show a location far from the real user.

Why do different IP lookup sites show different locations?

Each site uses its own geolocation database, and those databases are built from registry records, provider feeds and measurements that disagree, especially at city level. Country is usually right; the city is a best guess.

How do I report abuse from an IP address?

Look the address up and use the abuse contact shown in the result. That's the email the network's owner publishes in the registry for spam, scanning and attack reports. Include the IP, the exact time with time zone, and the relevant log lines.

Does it work with IPv6 addresses?

Yes. Paste any IPv6 address, in full or shortened form, such as 2001:4860:4860::8888. The same owner, network, hostname and location details are shown.

Is the IP lookup free? Are my lookups saved?

It's free, with no sign-up and no ads. The addresses you look up aren't saved by DWM IP; results may be cached for a few minutes so repeat lookups are fast. There's a limit of 60 lookups a minute to keep the free data sources usable for everyone.

IP address lookup

Enter any IPv4 or IPv6 address to see who it belongs to: the organisation and ASN that run it, the network and owner registered with the regional internet registry, its abuse contact, reverse DNS hostname and approximate location.

Look up an IP address

Enter an IPv4 or IPv6 address (a domain or URL works too).

Try:

How to look up an IP address

1
Enter the IP address
Type or paste an IPv4 address like 8.8.8.8 or an IPv6 address like 2606:4700:4700::1111. You can also paste a URL or domain and it's resolved for you.
2
Press Look up
DWM IP asks the internet routing tables, the regional registry and reverse DNS about that address, usually in a second or two.
3
Read and share the result
You'll see the organisation, ASN, network, owner, registry, abuse contact, hostname and approximate location. The address bar updates, so you can copy the link to share the result.

What an IP lookup tells you

Organisation and ASN: The network that announces the address on the internet, such as an ISP, mobile carrier, cloud provider or company, with its autonomous system number. This comes from Team Cymru's IP-to-ASN service.
Network range and owner: The block the address belongs to (for example 8.8.8.0/24), its network name and the registered owner, read over RDAP from ARIN, RIPE NCC, APNIC, LACNIC or AFRINIC.
Abuse contact: The email address the network's owner has published for reporting spam, scanning or attacks from that range.
Hostname: The reverse DNS (PTR) name, when the owner has set one. It often names the provider or the kind of connection, like a mobile or broadband pool.
Approximate location: The city, region, country and time zone the address is registered to in GeoJS's geolocation data, shown on a map.

What an IP lookup can't tell you

An IP lookup identifies a network, not a person. It won't give you anyone's name, phone number or street address: only the provider can link an address to a customer, and they normally only do that for a court order or the police.

Location is an estimate. For home and mobile connections it's often the provider's regional hub, tens of kilometres from the real user. For VPNs, proxies, iCloud Private Relay and CDNs you'll see the service's location, not the person behind it.

Private and special addresses

Some addresses never appear on the public internet, so they have no owner or location. DWM IP recognises them and explains what they are instead:

Private (10.x, 172.16–31.x, 192.168.x, fc00::/7): Handed out by routers inside homes and offices.
Carrier-grade NAT (100.64.0.0/10): Used by providers that share one public IP between many customers.
Loopback, link-local and documentation: 127.0.0.1 and ::1 point back at your own device, 169.254.x and fe80:: are self-assigned, and 192.0.2.x, 198.51.100.x, 203.0.113.x and 2001:db8:: are reserved for examples.

Common reasons to look up an IP

A sign-in alert from an unknown place: See whether the address belongs to a mobile carrier near you, a VPN, or a hosting company on the other side of the world.
Server logs and firewalls: Find out who is behind repeated requests or scans, and which range to block.
Spam and phishing emails: Look up the sending server's IP from the email's Received headers, then report it to the abuse contact.
Checking a service's hosting: See which cloud, CDN or provider an address belongs to before you allow it through a firewall.

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Frequently asked questions

Updated October 2026