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The North American Numbering Plan (NANP) divides the territories of its members into geographic numbering plan areas (NPAs). Each NPA is identified by one or more numbering plan area codes (NPA codes, or area codes), consisting of three digits that are prefixed to each local telephone number having seven digits.
Michigan's numbering plan expanded from three area codes in 1947 to twelve: 1947: Area codes 313, 517 and 616 are three of the original 86 area codes in the North American Numbering Plan.
An overlay with an area code 483 is anticipated by early 2026. The date has not yet been determined, but ten-digit dialing will be required ahead of such overlay. [2] [3] 256/938: March 23, 1998 July 10, 2010
GS1 GTIN prefix. 483. UNDP country code. TUK. WMO country code. TR. ITU callsign prefixes. EZA-EZZ ... GS1 GTIN prefix ...
Users can switch carriers while keeping number and prefix (so prefixes are not tightly coupled to a specific carrier). 7 Claro 8: Instituto Costarricense de Electricidad (Kölbi) Croatia +385: 91: 9: A1 Hrvatska: Due to Mobile number portability the prefix of an existing number does not determine the carrier. Any new number will follow the ...
Worldwide distribution of country calling codes. Regions are coloured by first digit. Country calling codes, country dial-in codes, international subscriber dialing (ISD) codes, or most commonly, telephone country codes are telephone number prefixes for reaching telephone subscribers in foreign countries or areas via international telecommunication networks.
483 Turkmenistan: 484 Moldova: 485 Armenia: 486 Georgia: 487 Cambodia: 488 Tajikistan: 489 Hong Kong: 490–499 Japan (original Japanese Article Number range) 500–509 United Kingdom: 520–521 Greece: 528 Lebanon: 529 Cyprus: 530 Albania: 531 North Macedonia: 535 Malta: 539 Ireland: 540–549 Belgium and Luxembourg: 560 Portugal: 569 Iceland ...
This is a list of future area codes in the North American Numbering Plan (NANP) that are in the planning stages for relief of central office code exhaustion in the given numbering plan areas (NPAs).