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About the IPv6 Lookup

Expand a shortened IPv6 address to its full form, compress it back, and see what kind of address it is — global unicast, link-local, unique local or multicast.

• Expand and compress IPv6 notation
• Address type, scope and prefix detection
• Owner and routing information for global addresses

Frequently asked questions

What does the :: in an IPv6 address mean?

It replaces one run of consecutive zero groups. It can appear only once in an address, which is why expansion is unambiguous.

Why do I have several IPv6 addresses?

Devices normally hold a link-local address plus one or more global addresses, often including a rotating privacy address.

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