Snippet from ISOC Web page
Credit where credit is due.
In January of last year I wrote 2 posts about the depletion of IPv4 addresses - IANA out of IPv4 addresses this week. In the course of my research, I discovered some members of Canada’s IT community were very unhappy with the federal government’s apparent inaction on the crucial IPv6 transition.
Fun facts: IPv6 uses a 128-bit address system, i.e. 2^128, which = 340,282,366,920,938,463,463,374,607,431,768,211,456 addresses (a 39-digit string). So roughly 3.4*10^38, or 340 trillion, trillion, trillion addresses. IPv6 is big enough so that every square meter of the Earth’s surface could be assigned 6 billion billion billion addresses (6 octillion, or 6*10^27).