4 ms·
Because IANA started delegating prefixes starting with 2. And haven't done enough delegations to go to 3. Prefixes starting with 0 of F are also in use for mapp
by Melkman 4y ago
Because IANA started delegating prefixes starting with 2. And haven't done enough delegations to go to 3. Prefixes starting with 0 of F are also in use for mapping IPv4 addresses to IPv6, link local and multicast adressing and other special needs.