# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2010-11-20 23:01:57 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/6120089732513793) “@IPv4Countdown: The number of allocatable IPv4s just dropped below one hundred and sixty-nine million. #IPv6” cc: @davetidey