Area codes 512 and 737 - wikipedia Area codes 512 and 737 Map of Texas and adjacent regions, with numbering plan area 512 highlighted. 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. 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. Typically, the largest city in an existing area code keeps the original code, which in this case would have been San Antonio. However, because of the wide dissemination of phone numbers for the plethora of state agencies in Austin ( the state capital ), state regulators decided that having the Austin area keep 512 would be less disruptive. On February 13, 1999, the 512 area code was reduced to its current size when the southern portion ( including Corpus Christi ) became 361. To stave off exhaustion by the end of 2013, 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 since June 2013. Contents 1 Service area 2 See also 3 References 4 External links Service area Area codes 512 and 737 serve the following municipalities : Austin Bastrop Bee Cave Bertram Briggs Buchanan Dam Buda Burnet Cedar Creek Cedar Park Coupland Dale Del Valle Driftwood Dripping Springs Elgin Fentress Georgetown Granger Hutto Jarrell Kempner Kyle Lakeway Lampasas Leander Liberty Hill Lockhart Lometa Manchaca Manor Martindale Maxwell McDade McNeil Muldoon Pflugerville Prairie Lea Rockdale Round Rock San Marcos Smithville Spicewood Staples Taylor Thorndale Thrall Walburg Weir Wimberley See also List of Texas area codes List of future North American area codes References Jump up ^ http://www.nanpa.com/pdf/NRUF/April_2012_NPA_Exhaust_Projections.pdf Jump up ^ NANPA 737 page Archived June 29, 2011, at the Wayback Machine. Jump up ^ Hello 737 ! No hang - up on new area code External links NANPA Area Code Map of Texas List of exchanges from AreaCodeDownload.com, 512 Area Code Texas area codes : 210 / 726, 214 / 469 / 972, 254, 281 / 346 / 713 / 832, 325, 361, 409, 430 / 903, 432, 512 / 737, 682 / 817, 806, 830, 915, 936, 940, 956, 979 North : 254, 325 West : 325, 830 area code 512 / 737 East : 254, 979 South : 361, 830, Retrieved from `` https://en.wikipedia.org/w/index.php?title=Area_codes_512_and_737&oldid=789667618 '' Categories : Area codes in the United States Area codes in Texas Hidden categories : Webarchive template wayback links Texas articles missing geocoordinate data All articles needing coordinates Talk Contents About Wikipedia Français Edit links This page was last edited on 8 July 2017, at 19 : 45. Text is available under the Creative Commons Attribution - ShareAlike License ; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy. Wikipedia ® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization. About Wikipedia

Question: what is the area code for austin texas
Answer: 737