Round rock Area Code
We have found 2 cities with names similar to "Round rock". Below is the list of cities that match your search criteria.
Round rock, AZ area code
Round rock, AZ is served by area code 928. This area code was initially assigned on 13-FEB-01 and has been in continuous service since 23-JUN-01, supporting the city's growing communication needs over the years.
| City Name | Round rock, AZ |
| Area Code | 928 |
| State | Arizona |
| Country | United State |
| Time Zone | Mountain Standard Time (MST) |
| Code Type | General Purpose Code |
| In Service | Yes |
| Assignment Date | 13-FEB-01 |
| In Service Date | 23-JUN-01 |
Round rock, TX area code
Round rock, TX is served by area code 512. This area code was initially assigned on 01-JAN-47 and has been in continuous service since 01-JAN-47, supporting the city's growing communication needs over the years.
The area code 512 is part of an overlay complex (512/737), which serves the same geographic region. This means that multiple area codes are used in the same area to accommodate the increasing demand for phone numbers.
| City Name | Round rock, TX |
| Area Code | 512 |
| Overlay Complex | 512/737 |
| State | Texas |
| Country | United State |
| Time Zone | Central Standard Time (CST) |
| Code Type | General Purpose Code |
| In Service | Yes |
| Assignment Date | 01-JAN-47 |
| In Service Date | 01-JAN-47 |
