| 210 | Texas (San Antonio area) More information at: Area Code 210 Phone Number Blocks |
| 214 | Texas (Dallas area, overlays with 469 and 972) More information at: Area Code 214 Phone Number Blocks |
| 254 | Texas (Waco, Killeen, Belton, and Stephenville) More information at: Area Code 254 Phone Number Blocks |
| 281 | Texas (Houston area, overlays with 713 and 832) More information at: Area Code 281 Phone Number Blocks |
| 325 | Texas (Abilene, Sweetwater, Snyder, San Angelo) More information at: Area Code 325 Phone Number Blocks |
| 361 | Texas (Corpus Christi, Victoria, George West and South Texas) More information at: Area Code 361 Phone Number Blocks |
| 409 | Texas (Beaumont, Galveston, Port Arthur, Jasper and Southeast Texas) More information at: Area Code 409 Phone Number Blocks |
| 430 | Texas (Northeast Texas, overlays with area code 903) More information at: Area Code 430 Phone Number Blocks |
| 432 | Texas (West Texas: Big Spring, Midland, Odessa) More information at: Area Code 432 Phone Number Blocks |
| 469 | Texas (Dallas area, overlays with 214 and 972) More information at: Area Code 469 Phone Number Blocks |
| 512 | Texas (Austin, Lampasas, Bastrop, Milam and Central Texas) More information at: Area Code 512 Phone Number Blocks |
| 682 | Texas (Fort Worth, Arlington, Grandview, Weatherford, Rhome, overlays with 817) More information at: Area Code 682 Phone Number Blocks |
| 713 | Texas (Houston area, overlays with 281 and 832) More information at: Area Code 713 Phone Number Blocks |
| 737 | Texas This Area code is scheduled to provide numbering relief to area code 512 but no date has been assigned for this to go into effect. More information at: Area Code 737 Phone Number Blocks |
| 806 | Texas (Amarillo, Lubbock, Canadian, Perryton, Shamrock, Dalhart and Texas Panhandle) More information at: Area Code 806 Phone Number Blocks |
| 817 | Texas (Fort Worth, Arlington, Grandview, Weatherford, Rhome, overlays with 682) More information at: Area Code 817 Phone Number Blocks |
| 830 | Texas (Del Rio, Uvalde, New Braunfels, Kerrville, Eagle Pass and southwest Texas) More information at: Area Code 830 Phone Number Blocks |
| 832 | Texas (Houston area, overlays with 281 and 713) More information at: Area Code 832 Phone Number Blocks |
| 903 | Texas (Tyler, Sherman, Longview, Marshall, Palestine, Jacksonville, Carthage, and Northeast Texas) More information at: Area Code 903 Phone Number Blocks |
| 915 | Texas (All of El Paso County and portion of Hudspeth County) More information at: Area Code 915 Phone Number Blocks |
| 936 | Texas (Nacogdoches, Lufkin, Conroe, Huntsville, Center and Southeast Texas) More information at: Area Code 936 Phone Number Blocks |
| 940 | Texas (Vernon, Wichita Falls, Denton, Gainesville, Decatur and North Texas) More information at: Area Code 940 Phone Number Blocks |
| 956 | Texas (Laredo, Brownsville, McAllen, Harlingen and South Texas) More information at: Area Code 956 Phone Number Blocks |
| 972 | Texas (Dallas area, overlays with 214 and 469) More information at: Area Code 972 Phone Number Blocks |
| 979 | Texas (Wharton, Bryan, Bay City, College Station, Lake Jackson, La Grange and Southeast Texas) More information at: Area Code 979 Phone Number Blocks |
