Area codes 512 and 737

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Area code 806Area code 940Area codes 682 & 817Area codes 682 & 817Area codes 214, 469 & 972Area codes 214, 469 & 972Area codes 430 & 903Area code 505Area code 915Area code 432Area codes 281, 713 & 832Area codes 281, 713 & 832Area code 979Area code 936Area code 409Area code 361Area code 956Area code 210Area code 210Area code 830Area code 254Area code 325Area code 318Area code 337Area code 870Area code 580A map of Texas, showing area code 512 in white. Click on an area to go to the page for that code.
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512 and 737 are North American telephone area codes serving Central Texas, currently for telephones in and near Austin. 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. At the time, it covered most of the south-central portion of Texas, from the Gulf of Mexico to the Mexican border. Besides Austin, it included San Antonio, Corpus Christi, Brownsville, Harlingen, and McAllen.

Despite the presence of San Antonio and Austin--the state's third- and fourth-largest cities, respectively, for most of the second half of the 20th century--this configuration remained in place for 45 years. In 1992, the western part of its territory (including San Antonio and the Rio Grande Valley) was split off as area code 210, making 512 the last of Texas' original four area codes to be split. On February 13, 1999, it was reduced to its current size when the southern portion (including Corpus Christi) became 361.

To stave off exhaustion by the end of 2013.[1][2] area code 737 was introduced as an overlay of 512 in July 2013. Ten-digit dialing within the 512 territory was phased in beginning December 2012 and made mandatory on June 1, 2013.[3]

Towns and cities served by these area codes[edit]

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Texas area codes: 210, 214, 254, 281, 325, 346, 361, 409, 430, 432, 469, 512, 682, 713, 737, 806, 817, 830, 832, 903, 915, 936, 940, 956, 972, 979
North: 254, 325
West: 325, 830area code 512/737East: 254, 979
South: 361, 830,