| City | Area Code | Dialing Code |
|---|---|---|
| Abilene | 325 | +1 325 |
| Allen | 214 | +1 214 |
| Allen | 469 | +1 469 |
| Allen | 972 | +1 972 |
| Alvin | 281 | +1 281 |
| Alvin | 346 | +1 346 |
| Alvin | 713 | +1 713 |
| Alvin | 832 | +1 832 |
| Amarillo | 806 | +1 806 |
| Arlington | 214 | +1 214 |
| Arlington | 682 | +1 682 |
| Arlington | 817 | +1 817 |
| Atascocita | 281 | +1 281 |
| Atascocita | 346 | +1 346 |
| Atascocita | 713 | +1 713 |
| Atascocita | 832 | +1 832 |
| Austin | 512 | +1 512 |
| Austin | 737 | +1 737 |
| Baytown | 281 | +1 281 |
| Baytown | 346 | +1 346 |
| Baytown | 713 | +1 713 |
| Baytown | 832 | +1 832 |
| Beaumont | 409 | +1 409 |
| Bedford | 682 | +1 682 |
| Bedford | 817 | +1 817 |
| Benbrook | 682 | +1 682 |
| Benbrook | 817 | +1 817 |
| Big Spring | 432 | +1 432 |
| Brownsville | 956 | +1 956 |
| Bryan | 979 | +1 979 |
| Burleson | 682 | +1 682 |
| Burleson | 817 | +1 817 |
| Carrollton | 214 | +1 214 |
| Carrollton | 469 | +1 469 |
| Carrollton | 972 | +1 972 |
| Cedar Hill | 214 | +1 214 |
| Cedar Hill | 469 | +1 469 |
| Cedar Hill | 972 | +1 972 |
| Cedar Park | 512 | +1 512 |
| Cedar Park | 737 | +1 737 |
| Channelview | 281 | +1 281 |
| Channelview | 346 | +1 346 |
| Channelview | 713 | +1 713 |
| Channelview | 832 | +1 832 |
| Cleburne | 682 | +1 682 |
| Cleburne | 817 | +1 817 |
| Cloverleaf | 281 | +1 281 |
| Cloverleaf | 346 | +1 346 |
| Cloverleaf | 713 | +1 713 |
| Cloverleaf | 832 | +1 832 |
| College Station | 979 | +1 979 |
| Conroe | 936 | +1 936 |
| Coppell | 214 | +1 214 |
| Coppell | 469 | +1 469 |
| Coppell | 972 | +1 972 |
| Copperas Cove | 254 | +1 254 |
| Corpus Christi | 361 | +1 361 |
| Corsicana | 903 | +1 903 |
| Dallas | 214 | +1 214 |
| Dallas | 469 | +1 469 |
| Dallas | 972 | +1 972 |
| Deer Park | 281 | +1 281 |
| Deer Park | 346 | +1 346 |
| Deer Park | 713 | +1 713 |
| Deer Park | 832 | +1 832 |
| Del Rio | 830 | +1 830 |
| Denison | 903 | +1 903 |
| Denton | 940 | +1 940 |
| DeSoto | 214 | +1 214 |
| DeSoto | 469 | +1 469 |
| DeSoto | 972 | +1 972 |
| Duncanville | 214 | +1 214 |
| Duncanville | 469 | +1 469 |
| Duncanville | 972 | +1 972 |
| Eagle Pass | 830 | +1 830 |
| Edinburg | 956 | +1 956 |
| El Paso | 915 | +1 915 |
| Euless | 682 | +1 682 |
| Euless | 817 | +1 817 |
| Farmers Branch | 214 | +1 214 |
| Farmers Branch | 469 | +1 469 |
| Farmers Branch | 972 | +1 972 |
| Flower Mound | 214 | +1 214 |
| Flower Mound | 469 | +1 469 |
| Flower Mound | 972 | +1 972 |
| Fort Hood | 254 | +1 254 |
| Fort Worth | 682 | +1 682 |
| Fort Worth | 817 | +1 817 |
| Friendswood | 281 | +1 281 |
| Friendswood | 346 | +1 346 |
| Friendswood | 713 | +1 713 |
| Friendswood | 832 | +1 832 |
| Frisco | 214 | +1 214 |
| Frisco | 469 | +1 469 |
| Frisco | 972 | +1 972 |
| Galveston | 409 | +1 409 |
| Garland | 214 | +1 214 |
| Garland | 469 | +1 469 |
| Garland | 972 | +1 972 |
| Georgetown | 512 | +1 512 |
| Georgetown | 737 | +1 737 |
| Grand Prairie | 214 | +1 214 |
| Grand Prairie | 469 | +1 469 |
| Grand Prairie | 972 | +1 972 |
| Grapevine | 682 | +1 682 |
| Grapevine | 817 | +1 817 |
| Greenville | 903 | +1 903 |
| Haltom City | 682 | +1 682 |
| Haltom City | 817 | +1 817 |
| Harlingen | 956 | +1 956 |
| Huntsville | 936 | +1 936 |
| Hurst | 682 | +1 682 |
| Hurst | 817 | +1 817 |
| Irving | 214 | +1 214 |
| Irving | 469 | +1 469 |
| Irving | 972 | +1 972 |
| Keller | 682 | +1 682 |
| Keller | 817 | +1 817 |
| Kerrville | 830 | +1 830 |
| Killeen | 254 | +1 254 |
| Kingsville | 361 | +1 361 |
| La Porte | 281 | +1 281 |
| La Porte | 346 | +1 346 |
| La Porte | 713 | +1 713 |
| La Porte | 832 | +1 832 |
| Lake Jackson | 979 | +1 979 |
| Lancaster | 214 | +1 214 |
| Lancaster | 469 | +1 469 |
| Lancaster | 972 | +1 972 |
| Laredo | 956 | +1 956 |
| League City | 281 | +1 281 |
| League City | 346 | +1 346 |
| League City | 713 | +1 713 |
| League City | 832 | +1 832 |
| Lewisville | 214 | +1 214 |
| Lewisville | 469 | +1 469 |
| Lewisville | 940 | +1 940 |
| Lewisville | 972 | +1 972 |
| Longview | 903 | +1 903 |
| Lubbock | 806 | +1 806 |
| Lufkin | 936 | +1 936 |
| Mansfield | 682 | +1 682 |
| Mansfield | 817 | +1 817 |
| Marshall | 903 | +1 903 |
| McAllen | 956 | +1 956 |
| McKinney | 214 | +1 214 |
| McKinney | 469 | +1 469 |
| McKinney | 972 | +1 972 |
| Mesquite | 214 | +1 214 |
| Mesquite | 469 | +1 469 |
| Mesquite | 972 | +1 972 |
| Midland | 432 | +1 432 |
| Mission | 956 | +1 956 |
| Mission Bend | 281 | +1 281 |
| Mission Bend | 346 | +1 346 |
| Mission Bend | 713 | +1 713 |
| Mission Bend | 832 | +1 832 |
| Missouri City | 281 | +1 281 |
| Missouri City | 346 | +1 346 |
| Missouri City | 713 | +1 713 |
| Missouri City | 832 | +1 832 |
| Nacogdoches | 936 | +1 936 |
| New Braunfels | 830 | +1 830 |
| North Richland Hills | 682 | +1 682 |
| North Richland Hills | 817 | +1 817 |
| Paris | 903 | +1 903 |
| Pasadena | 281 | +1 281 |
| Pasadena | 346 | +1 346 |
| Pasadena | 713 | +1 713 |
| Pasadena | 832 | +1 832 |
| Pearland | 281 | +1 281 |
| Pearland | 346 | +1 346 |
| Pearland | 713 | +1 713 |
| Pearland | 832 | +1 832 |
| Pharr | 956 | +1 956 |
| Plainview | 806 | +1 806 |
| Plano | 214 | +1 214 |
| Plano | 469 | +1 469 |
| Plano | 972 | +1 972 |
| Port Arthur | 409 | +1 409 |
| Richardson | 214 | +1 214 |
| Richardson | 469 | +1 469 |
| Richardson | 972 | +1 972 |
| Rosenberg | 281 | +1 281 |
| Rosenberg | 346 | +1 346 |
| Rosenberg | 713 | +1 713 |
| Rosenberg | 832 | +1 832 |
| Round Rock | 512 | +1 512 |
| Round Rock | 737 | +1 737 |
| Rowlett | 214 | +1 214 |
| Rowlett | 469 | +1 469 |
| Rowlett | 972 | +1 972 |
| San Angelo | 325 | +1 325 |
| San Antonio | 210 | +1 210 |
| San Benito | 956 | +1 956 |
| San Juan | 956 | +1 956 |
| San Marcos | 512 | +1 512 |
| San Marcos | 737 | +1 737 |
| Seguin | 830 | +1 830 |
| Sherman | 903 | +1 903 |
| Socorro | 915 | +1 915 |
| South Houston | 281 | +1 281 |
| South Houston | 346 | +1 346 |
| South Houston | 713 | +1 713 |
| South Houston | 832 | +1 832 |
| Southlake | 682 | +1 682 |
| Southlake | 817 | +1 817 |
| Spring | 281 | +1 281 |
| Spring | 346 | +1 346 |
| Spring | 713 | +1 713 |
| Spring | 832 | +1 832 |
| Sugar Land | 281 | +1 281 |
| Sugar Land | 346 | +1 346 |
| Sugar Land | 713 | +1 713 |
| Sugar Land | 832 | +1 832 |
| Temple | 254 | +1 254 |
| Texarkana | 903 | +1 903 |
| Texas City | 409 | +1 409 |
| The Colony | 214 | +1 214 |
| The Colony | 469 | +1 469 |
| The Colony | 972 | +1 972 |
| The Woodlands | 281 | +1 281 |
| The Woodlands | 346 | +1 346 |
| The Woodlands | 713 | +1 713 |
| The Woodlands | 832 | +1 832 |
| Tyler | 903 | +1 903 |
| University Park | 214 | +1 214 |
| University Park | 469 | +1 469 |
| University Park | 972 | +1 972 |
| Victoria | 361 | +1 361 |
| Waco | 254 | +1 254 |
| Watauga | 682 | +1 682 |
| Watauga | 817 | +1 817 |
| Waxahachie | 214 | +1 214 |
| Waxahachie | 469 | +1 469 |
| Waxahachie | 972 | +1 972 |
| Weslaco | 956 | +1 956 |
| West Odessa | 432 | +1 432 |
| Wichita Falls | 940 | +1 940 |