| City | Area Code | Dialing Code |
|---|---|---|
| Bartlett | 901 | +1 901 |
| Brentwood | 615 | +1 615 |
| Brentwood | 629 | +1 629 |
| Bristol | 423 | +1 423 |
| Clarksville | 931 | +1 931 |
| Collierville | 901 | +1 901 |
| Columbia | 931 | +1 931 |
| Cookeville | 931 | +1 931 |
| East Chattanooga | 423 | +1 423 |
| East Ridge | 423 | +1 423 |
| Franklin | 615 | +1 615 |
| Franklin | 629 | +1 629 |
| Gallatin | 615 | +1 615 |
| Gallatin | 629 | +1 629 |
| Germantown | 901 | +1 901 |
| Hendersonville | 615 | +1 615 |
| Hendersonville | 629 | +1 629 |
| Jackson | 731 | +1 731 |
| Johnson City | 423 | +1 423 |
| Kingsport | 423 | +1 423 |
| Knoxville | 865 | +1 865 |
| Lebanon | 615 | +1 615 |
| Lebanon | 629 | +1 629 |
| Maryville | 865 | +1 865 |
| Memphis | 901 | +1 901 |
| Morristown | 423 | +1 423 |
| Murfreesboro | 615 | +1 615 |
| Murfreesboro | 629 | +1 629 |
| Nashville | 615 | +1 615 |
| Nashville | 629 | +1 629 |
| Oak Ridge | 865 | +1 865 |
| Oak Ridge | 865 | +1 865 |
| Smyrna | 615 | +1 615 |
| Smyrna | 629 | +1 629 |
| South Cleveland | 423 | +1 423 |