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Address Types and Prefixes
Address Type Prefix
Global unicast 001
Link local unicast 1111 1110 10 (FE8…)
IPv4 Compatible (96 zeros)
Multicast 1111 1111 (FF)
Note that global unicast is only 1/8 of address space.
Most of the rest of the space is unassigned (over 70%) or reserved for special use (about 15%).