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North American Numbering Plan - Wikipedia, the free encyclopedia - 0 views

en.wikipedia.org/...North_American_Numbering_Plan

v63.0233.2009Su combinatorics telephone

shared by Matthew Leingang on 16 Jun 09 - Cached

Matthew Leingang on 16 Jun 09

Describing the way phone numbers is North America are coded

<div class="cArrow"> </div><div class="cContentInner">Describing the way phone numbers is North America are coded</div>

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Matthew Leingang on 16 Jun 09

Area codes used to be much more restrictive. How many area codes were possible before 1995? After 1995?

<div class="cArrow"> </div><div class="cContentInner">Area codes used to be much more restrictive. How many area codes were possible before 1995? After 1995?</div>

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