Enter an IPv6 address in the "yellow" field above and click the "Calculate" button.
The address will be classified and referenced to RFC.
Script matches against over 250 reserved prefixes and masks.
Prefix (subnetmask) is calculated and how many /64 subnets.
Address formats
xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx/nn
8 chunks of 4 hex / prefix bits (0-128)
xxxx:x::xx
truncated formats OK
xxxx:oo.oo.oo.oo::x
embeded IPv4 addresses OK
Example Addresses
::1
fe80::02d0:c1ff:fe5c:0010/10
3ffe:80f0:1:1001::1/64
2002:192.88.99.1::1/64
2001::1
2002:c0a8:1122::5efe:0a01:0101/48
ff02::9
ff02::1:ff11:2233
Notes/Todo
You can enter 2 embedded IPv4 addresses (4 octet format)
ff0x:: anyscope multicast addresses are listed as ff00::
::/96 v4compat detected even though v4 is 0.0.0.0