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Tele-Communication (Telecom) Terms Glossary and Dictionary
NANP: North American Numbering Plan
North American Numbering Plan (NANP) is the North American telephone number arrangement or the process for assigning 10-digit (3+3+4) North American telephone numbers, NPA-NXX-XXXX. NPA is the Area Codes, NXX is the Exchanges and XXXX is the Line Numbers.
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