Today, the Internet Assigned Numbers Authority ( IANA) will be passing out the last five Class A address spaces to the Regional Internet Registries (RIR), which in turn allocate IP addresses to organizations within their specific geographic regions. This marks the end of the IPv4 central pool, and the countdown to IPv4 exhaustion begins in earnest. The American Registry of Internet Numbers (ARIN)–which handles allocations for Canada, the United States and many Caribbean islands–is forecasting that it will run out of address space in the July-to-October time frame.
Network Computing