The American Registry for Internet Numbers (ARIN) is a non-profit organization that manages the IPv4, IPv6 and Autonomous System Numbers (ASN) for North America, Canada, most of the Caribbean islands and even some outlying areas such as Antarctica and the island of St. Helena.
So what does ARIN really do? ARIN is one out of five Regional Internet Registries responsible for the administration and distribution of Internet addresses. A governing organization is needed to ensure that the limited available IPv4 space gets properly allocated and assigned. In September of 2015 the IPv4 address space that was allocated to the ARIN region depleted, putting companies on a long waiting list with dates going back to as far as 2017.
In December 1997 the IANA (Internet Assigned Numbers Authority) turned the responsibility for this region over to ARIN, which along with the other 4 registries now manages all of the IPv4 address space available in the world.
Prefixx puts buyers and sellers in the ARIN region together to help facilitate with IPv4 transactions.
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