Ever wonder where some area code is? Google is pretty helpful with that, but I also stumbled across this remarkable labor of love; pretty well anything you could possibly want to know about area codes, with exhaustive mapping, all on one page. And there’s a related page on how new area codes get worked into the system—for a real thrill, scroll down and read the section on Overlay.

author · Dad
colophon · rights
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January 07, 2004
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