We’ve been hearing about the impending depletion of IPv4 addresses for years, but that day is finally upon us -- the free supply of IPv4 numbers in North America will be completely gone within a month or two.However, as the world slowly transitions to IPv6, there’s no cause for alarm. A significant quantity of unused, previously allocated IPv4 numbers are readily available for re-distribution to IP network operators that need them. And an active private market for IPv4 addresses has emerged to allow companies with these excess IPv4 numbers to sell them to those in need.+ ALSO ON NETWORK WORLD Infographic: IPv4 vs IPv6 +To read this article in full or to leave a comment, please click here