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Overlay complex
Method of area code relief for an exhausted code
In telecommunications, an area code overlay complex is a telephone numbering plan that assigns multiple area codes to the same geographic numbering plan area (NPA). Area code overlays are implemented in territories of the North American Numbering Plan (NANP) to mitigate exhaustion of central office codes in growth areas.
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In telecommunications, an area code overlay complex is a telephone numbering plan that assigns multiple area codes to the same geographic numbering plan area (NPA). Area code overlays are implemented in territories of the North American Numbering Plan (NANP) to mitigate exhaustion of central office codes in growth areas. The method has been in use since 1992, and has been the exclusive method of area code relief since 2007.
Texto: Wikipedia en inglés, CC BY-SA 4.0. ·
Cartas cercanas
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Area code 216
Telephone area code for Cleveland, Ohio
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Area codes 440 and 436
Telephone area code in the Cleveland, Ohio area
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Area code 574
Area code that serves South Bend and north-central Indiana
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Area code 260
Area code in northeast Indiana
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Area codes 203 and 475
Area codes that serve the southwestern part of Connecticut
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Area codes 732 and 848
New Jersey, United States area codes