Which address is a link-local address?

The link-local address is defined as fe80::/10. Any address starting with fe80 is nonroutable. A global unicast address is defined as 2000::/3. This provides a valid range of 2000:: to 3fff::. An address with a network prefix of fc00::/7 is a unique local unicast address. The network address of fd00 would be part of the fc00::/7 network range. An address with a network prefix of ff00::/8 is a multicast address.