The supply of IPv4 addresses was, as of Tuesday, technically exhausted in Latin America, the regional internet registry Lacnic said.
The announcement comes a few weeks before the administrator's predicted address "D-Day", June 29. Lacnic said it had 4,194,302 IPv4 addresses left in stock, triggering the implementation of "gradual exhaustion" policies.
This also means that more restrictive policies will be used to assign and transfer IPv4 addresses in the region.
Lacnic CEO Raúl Echeberría said in a release: "This is an historical event that isn't less important because it was expected and announced.
"From this point forward, Lacnic and national registries can only assign very small quantities of IPv4 addresses, [which are] not enough to cover the needs of our region."
The organization has assigned more than 182mn IPv4 addresses in Latin America and the Caribbean since 2002. Now, during the gradual exhaustion phase, blocks of 256-1,024 IP addresses can be assigned, and organizations must wait six months between requests for more addresses.
Of the 4.19mn remaining IPv4 addresses, about half, or 2,097,150, can be assigned. Afterwards, Lacnic members will no longer be able to receive IPv4 addresses.
Internet protocols essentially route packets of information across the internet from a source host to a destination host. They also have an addressing system which is limited in supply. The exhaustion of this supply of addresses has been anticipated since the 1980s and is the reason for the development and deployment of the successor protocol, IPv6.