North American Numbering Plan expansion
Proposals to provide for more telephone numbers in US and Canada / From Wikipedia, the free encyclopedia
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The expansion of the North American Numbering Plan (NANP) is the anticipated requirement for providing more telephone numbers to accommodate future needs beyond the pool of ten-digit telephone numbers. Ten-digit telephone numbers have been in use in the United States and Canada in long-distance telephone service since the 1950s. An October 2020 analysis estimated that the numbering plan would not be exhausted until after 2050.[1]
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