IPv6 Lookup
IPv6 Lookup: Find Location and Network Details
Enter an IPv6 address (the colon-separated hex format, like 2001:db8::1) to see its location, ISP, ASN, and organization.
How to check or find an IPv6 address
Looking to check an IPv6 address instead of just reading about the format? Use the IPv6 lookup tool above: enter any IPv6 address and this page returns its approximate location, ISP, ASN, and connection type immediately, the same way it just did for your own connection. It works as an IPv6 finder, IPv6 tracker, and IPv6 checker all in one, there's no separate mode to switch, just type the address and search.
What is IPv6?
IPv6 is the newer addressing format built to replace IPv4's exhausted 4.3-billion-address space. Instead of four dotted numbers, an IPv6 address is eight groups of hexadecimal digits separated by colons, like 2001:db8:85a3::8a2e:370:7334, with the 128-bit address space behind that format large enough to assign a unique address to essentially every device that will ever connect to the internet.
IPv6 subnets, prefixes, and link-local addresses
IPv6 networking introduces a few concepts IPv4 doesn't have. A subnet is described with a prefix, written as a slash followed by a number (like /64), which marks how many of the address's 128 bits identify the network versus the individual device, the IPv6 equivalent of a subnet mask. A link-local address, always starting with fe80::, is automatically assigned to every IPv6-capable interface for communication with other devices on the same local network segment; it's never routed on the public internet, so a lookup on one won't return location data, similar to a private IPv4 address.
Where IPv6 adoption stands
Most major ISPs and mobile carriers now support IPv6, but rollout is uneven, which is why most networks run IPv4 and IPv6 side by side rather than one or the other. Whether your own connection shows up as IPv4 or IPv6 depends on your ISP, router, and even which website you're reaching. If you need to look up an IPv4 address specifically, use IPv4 Lookup instead.
Frequently asked questions
What does an IPv6 address look like?
Eight groups of hexadecimal digits separated by colons, like 2001:db8:85a3::8a2e:370:7334. Consecutive groups of zeros can be shortened to a double colon (::), which is why IPv6 addresses vary so much in visible length.
Why does IPv6 exist if IPv4 still works?
IPv4's roughly 4.3 billion addresses ran out years ago. IPv6 uses 128-bit addressing instead of IPv4's 32-bit, which multiplies the available address space enormously, enough that exhaustion isn't a realistic concern for the foreseeable future.
Why do I sometimes see an IPv4 address instead of IPv6?
Not every ISP or device has finished the IPv6 rollout. Most networks today run IPv4 and IPv6 side by side (dual-stack), and which one a given connection uses depends on your ISP, router, and the site you're reaching.
Can I look up a link-local IPv6 address here?
No, link-local addresses (starting with fe80::) only work on your local network and aren't globally routable, so there's no location data available for them.
Can I look up an IPv4 address here?
Not on this page, it's restricted to IPv6 so the content stays focused. Use IP Lookup for either format, or IPv4 Lookup for IPv4 addresses specifically.