Why Texas Has More Area Codes Than Any Other State
Texas is home to more active area codes than any other US state. Its combination of enormous size, fast-growing cities, and booming economy tells the whole story.
The Lone Star State's Area Code Sprawl
Texas has the most area codes of any US state — a reflection of its enormous size (268,596 square miles), rapidly growing population (30+ million), and the sheer economic vitality of its major metros. Where California competes for the top spot in total codes, Texas consistently holds its own despite being less densely populated than California.
The Original Texas Code: 214
In 1947, all of Texas was assigned area code 214. As the state grew, it was split into north (214), south/central (512), and west (915) portions — and the splits have continued ever since.
Dallas-Fort Worth: A Metro of Many Codes
The Dallas–Fort Worth metroplex is one of the fastest-growing metro areas in the US. It now uses 214 and overlay 469 for Dallas proper, 972 and overlay 469 for the suburbs, and 817 and overlay 682 for Fort Worth.
Houston's Growth
Houston uses 713 for the urban core, with 832 as an overlay, and 281 for the suburbs — themselves overlaid by 346. Greater Houston has added codes repeatedly as the metropolitan area expanded into surrounding counties.
San Antonio, Austin, and the Rest
San Antonio uses 210. Austin uses 512 with overlay 737. El Paso in far west Texas uses 915. Rural west Texas uses 432. The Gulf Coast around Corpus Christi uses 361. See all codes at Texas area codes.
More Area Code Guides
How Area Codes Were Originally Assigned in 1947
The original area code assignments were a masterpiece of engineering logic. AT&T's system tied dial speed to population density in a way that optimized rotary phones across the continent.
Non-Geographic Area Codes: 800, 888, 900, and Beyond
Not all area codes correspond to a geographic region. Toll-free numbers, premium-rate numbers, and special service codes each have their own dedicated ranges.
Area Code 604: Vancouver and British Columbia's Phone History
Area code 604 has served Vancouver and British Columbia since 1947. As Metro Vancouver became one of Canada's largest cities, it required several new codes to keep up.