Saturday September 26, 2015

We’re Completely Out Of New IPv4 Addresses

If you’re interested in a brand-new IP address, it’s going to have to be IPv6.

The IPv4 space globally offers 4,294,967,296 network addresses آ– which seemed like an awful lot back in the 1970s when the internet was coming together. (Not all of those are usable on the public internet as some chunks are reserved. For example, the familiar 10.x.x.x and 192.168.x.x blocks are used for internal networks.) Since then, the, er, information superhighway, cyber-space, or whatever you want to call it, has exploded, and the seemingly endless supply of IPv4 addresses is running out.

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