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With the depletion of new numbers in area codes 312 and 773, an overlay of both of them, area code 872, was created in November 2009, beginning ten-digit dialing within the city limits of Chicago. The remaining area without an overlay in the northern part of Illinois, 708, eventually received such with area code 464 taking effect on January 21 ...
Area codes are also assigned for non-geographic purposes. The rules for numbering NPAs do not permit the digits 0 and 1 in the leading position. [1] Area codes with two identical trailing digits are easily recognizable codes (ERC). NPAs with 9 in the second position are reserved for future format expansion.
Area codes 512 and 737 are North American telephone area codes serving Austin, Texas, and its suburbs. Counties currently served by these area codes include Bastrop, Burnet, Caldwell, Hays, Travis, Milam and Williamson. Area code 512 was one of the original area codes established in October 1947.
Thus, it would not have been possible to locate the approximate geographic location of a numbering plan area by its code alone. The plan divided New York into five areas, the most of any state. Illinois, Ohio, Pennsylvania, and Texas were assigned four area codes each, and California, Iowa, and Michigan received three. Eight states and ...
Area codes 512 and 737; Global file usage. The following other wikis use this file: Usage on fr.wikipedia.org Indicatif régional 512; Metadata.
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On October 7, 2007, area code 331 began overlaying area code 630, making ten-digit dialing mandatory in the area. The Illinois side of the Chicago area– 312 / 773 / 872 , 708, 847/224, 630/331 and portions of 815/779 –is one of the largest local calling areas in the United States; with few exceptions, no long-distance charges are applied ...