Area codes 210 and 726 are telephone area codes in the North American Numbering Plan (NANP) for the San Antonio area in the U.S. state of Texas. Area code 210 was created in an area code split from number plan area 512 in 1992. After only a few years, the threat of number exhaustion forced a reduction of the size of the numbering plan area to the center of the San Antonio metropolitan area in 1997. Area code 726 was assigned to the same numbering plan area in an overlay complex activated in 2017 to alleviate the threat of exhaustion of central office codes that was expected by 2018. Area codes 210 and 726 are enclave codes for an area completely surrounded by numbering plan area 830.
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surrounds areacodes210and726, which serve most of San Antonio itself along with its innermost suburbs. It was created July 7, 1997, in a split from 210. A...
list of areacodes in the U.S. state of Texas. The date of establishment of each areacode is indicated in parentheses: 210: San Antonio area; overlays...
Padre Island, Sullivan City, Weslaco, and Zapata List of Texas areacodes List of North American Numbering Plan areacodes NANPA areacode map of Texas...
geographic numbering plan areas (NPAs). Each NPA is identified by one or more numbering plan areacodes (NPA codes, or areacodes), consisting of three digits...
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within the same area, the areacode is not required. In general, shorter areacodes are assigned to larger cities, and longer areacodes to smaller towns...
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being in the Oklahoma City metropolitan area, the 1997 split made 580 one of the most thinly populated areacodes in the nation. Under current projections...
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Areacode 940 is a telephone areacode in the North American Numbering Plan (NANP) for the U.S. state of Texas in the Wichita Falls and Denton areas. It...
plan area comprises the Beaumont and Galveston areas. It was created on March 19, 1983, in an areacode split of areacode 713, the first since 619 split...