IANA
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... The Internet Registry hierarchy consists of the following levels
of hierarchy as seen from the top down: IANA, Regional IRs, Local
IRs.
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... IANA ...
... number spaces used in the Internet. This includes Internet
Address Space. IANA allocates parts of the Internet address space
to regional IRs according to its established needs.
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Regional IRs are established under the authority of the IANA.
This requires consensus within the Internet community of the
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... IP addresses are valid as long as the criteria continues to be met.
The IANA reserves the right to invalidate any IP assignments once it
is determined the the requirement ...
... has a high level of confidence. The minimal utilization rate is set
by the IANA and may be changed at any time. New utilization rates
may be enforced by the regional registries prior to updating the
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... appeals to the parent registry's parent). If necessary, after
exhausting all other avenues, the appeal may be forwarded to IANA for
a final decision. Each registry must, as part of their policy,
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