The last two available /8 blocks of IPv4 addresses have been allocated by IANA to APNIC. This takes the remaining total down to 5 which means the IPv4 address pool is effectively exhausted. The last 5 are spoken for. There are no more. That’s it :).
I’m holding off crying “history, history” until the remaining 5 are allocated. This was, I’m told, originally planned for a ceremonial handover at the ICANN meeting in San Fransisco in March but will now happen much sooner than that. Keep reading this blog for updates.
I’ve written plenty about this so if you need to understand more do a search for IPv6. It is worth noting that this isn’t the total exhaustion of all IPv4 addresses. That will happen in dribs and drabs as people use up those held by Regional Internet Registries (RIRs – expected to be streched out in ever decreasing block sizes) and then use up their own.
You need an IPv6 strategy. For a quick overview on how it might affect you read this.