| Start Date | 07/01/2013 |
| Current Time in Area Code 737 | 737> CDT |
| Timezone | Central Daylight Time |
| Regional Market Area | Metro Austin Waco-Temple Area |
| Metro Area(s) | Austin-Round Rock-Georgetown, TX |
| Population (2020) | 2371606 |
| Adjacent Area Codes | 254,325,512,830,979 |
| Overlay Area Codes | 512 |
| Bastrop County |
| Burnet County |
| Caldwell County |
| Hays County |
| Lampasas County |
| Lee County |
| Travis County |
| Williamson County |
| Austin |
| Cedar Park |
| Georgetown |
| Kyle |
| Leander |
| Pflugerville |
| Round Rock |
| San Marcos |