Internet Assigned Numbers Authority
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... routers and middleboxes for personal or residential use. In another
case, IP address prefixes that had once been reserved by the Internet
Assigned Numbers Authority (IANA) were embedded in a router product
...
... hosts, the IP address blocks become encumbered by their historical
use. This may interfere with the ability of the Internet Assigned
Numbers Authority (IANA) and the Internet Registry (IR ...