Strict rationing of these addresses - called IPv4 - has been started by the body that hands them out in Europe.
From now on, companies can only make one more application for IPv4 addresses and, if successful, will only get 1,024 of them.
In addition, any application for more old addresses must demonstrate how an organisation is using the new, replacement, addressing scheme.
"The day has come, finally," said Axel Pawlik, managing director of the Ripe NCC that hands out addresses to European ISPs, firms and other organisations.
Read the rest of the article on BBC News.
I wonder if this will speed up the rollout of IPv6 in Europe...