2011/11/25

The last IPv4 address in the world is 223.255.254.254

Today, I checked that the last Class C address block 223.255.255.0/24 is still in the hands of APNIC and I very much doubt APNIC will allocate it to any organizations.  Having saying that, we can expect the last IPv4 address that can be used in the world is 223.255.254.254 which is now owned by Singapore Marina Bay Sands Pte Ltd.  Of course, 223.255.254.255 can not be used as it is a broadcast address on a per Class C basis.

No comments: