IT experts warn that the pool of IPv4 addresses left unused is rapidly running dry for America. Sandra Brown, president of IPv4 Market Group, says the prices for IPv4 addresses are going to soar.

IPv4 stands for Internet Protocol version 4. The standard dates from the late ’80s when it was naively assigned only a few billion addresses as 32-bit integers. Now that they’re running out, Internet-reliant businesses are being forced to