Starting in July all new cell phone and landlines in the Austin area will be assigned the 737 area code and we will all be required to dial 10 digits on all phone calls. The continued population increase in the capital has made it necessary to add the new area code.
The main area code, 512, was one of theÂ original area codesÂ established in October 1947. At the time, it covered most of the south-central portion of Texas, from theÂ Gulf of MexicoÂ to theÂ MexicanÂ border. Besides Austin, it includedÂ San Antonio,Â Corpus Christi,Â Brownsville,Â HarlingenÂ andÂ McAllen.
Despite the presence of both San Antonio and Austin, 512 remained unchanged for 45 years. Finally, in 1992, the western part of its territory, including San Antonio, was split off asÂ 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 (includingÂ Corpus Christi) was split off intoÂ 361.