All the Internet addresses will be gone by the summer

Engineers who created 4.3 billion Internet Protocol addresses back in 1981 probably thought that by the time we ran through all those, we'd be puttering around in flying cars. Flying cars are going to be a while, but it looks like our IP numbers are finally up: The American Registry for Internet Numbers, the group that hands out the numerical codes, says there are only 3.4 million IPv4 addresses left, and the group's president says the supply will probably dry up by summer, the Wall Street Journal reports. Major companies like Amazon and Microsoft are scooping up remaining addresses while they can, while others such as Facebook decided to bite the bullet and simply upgrade to the newer IPv6 system (IPv5 never really took hold).