IP (v4) addresses have run out

In the 90s, phone numbers were going to run out if we didn't take the plunge and switch from nine digit 0x-xxx-xxxx numbers to ten digit 0x-xxxx-xxxx numbers. The telecommunications industry (led by... was it Austel?) got everybody switched over okay. (In the US, they decided not to expand the number of digits for local numbers, instead using multiple area codes per city. New York City for inst