IP Address Shortage!
It is estimated that the world is facing an IP address crisis where online world is running out of them. This threat is apparently a decade old. The IP address shortage problem had not been dealt with seriously before this.
The world is being slowly conditioned to buckle up and ready the requirements for IPv6, since IPv4 will not be able to bear the growing numbers of the IP address. Mobile phones are touted to be the next big customers for the IP address.
IPv4 uses 32-bit addressing. It can support 4.3 billion computers and other devices connected to the Internet at the same point of time. On the other hand IPv6 systems use128-bit addresses, but is not compatible with IPv4's IP address and content. So it will just generate a blank page if a mobile phone user transferred from IPv4 to IPv6 system. Now there has also been a rise in formation of cartels and hoarding, resulting in selling IP addresses at exorbitant prices.