IPv4 Addresses Running Out

January 19, 2010, By Radimir Bobev

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IPv4 addresses are nearing a critical shortage level, as indicated by an announcement made by the organization that represents the various registries responsible for allocating IP addresses.

The organization in question is the Number Resource Organization, and they stated that currently, more than 90% of the addresses in the IPv4 range have already been allocated, leaving us less than a tenth available.

This means that sooner or later, people will finally move on to IPv6, and IPv4 will become a thing of the past – and by the looks of it, it’ll most likely be soon.

IPv4 addresses are in the format XXX.XXX.XXX.XXX, where each number can be in the 0-255 range, making the possible combinations 4,294,967,296 – or 255 to the power of 4. It’s easy to see how such a number would get filled up quickly in today’s environment.

IPv6, on the other hand, provides the possibility for 2^128 addresses, which should technically never get allocated so quickly.

[ Via CNET ]

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