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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.
The original North American area codes were established by the American Telephone and Telegraph Company (AT&T) in 1947, after the demonstration of regional Operator Toll Dialing during the World War II period. The program had the goal of speeding the connecting times for long-distance calling by eliminating intermediary telephone operators.
Area codes 212, 646, and 332. Coordinates: 40°43′42″N 73°59′39″W. Area codes 212, 646, and 332 are area codes in the North American Numbering Plan (NANP) for most of the borough of Manhattan in New York City. By area, it is one of the smallest numbering plan areas (NPAs). [1] The three area codes form an overlay numbering plan, and ...
Area code 445. Area codes 570 and 272. Area codes 610, 484, and 835. Area codes 717 and 223. Area code 724. Area codes 814 and 582. Area code 835. Area code 878. List of Pennsylvania area codes.
767 — Dominica. 784 — St. Vincent and Grenadines. 809, 829, and 849 — The Dominican Republic. 868 — Trinidad and Tobago. 869 — St. Kitts and Nevis. 876 — Jamaica. It’s important to ...
The area codes in the U.S. State of New Jersey are a component of the North American Numbering Plan . 201: Northeastern New Jersey, primarily Bergen County and Hudson County. 551: Overlays area code 201. 609: Trenton, Lawrenceville, Princeton, Medford, Atlantic City, Barnegat, Wildwood, Ocean City, Burlington, Cape May. 640: Overlays 609.
Area code 700. Area code 700 of the North American Numbering Plan is a service access code (SAC) implemented by interexchange carriers. It is reserved for carrier-specific number assignments to special services or destinations. It was introduced in 1983 for providing customized services in anticipation of the introduction of long-distance ...
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