| Area Code | 615 |
| State | Tennessee |
| Current Time in Area Code 615 | 615> CST |
| Timezone | Central Standard Time |
| Regional Market Area | Metro Nashville |
| Metro Area(s) | Nashville-Davidson--Murfreesboro--Franklin, TN |
| Population (2020) | 1908625 |
| Adjacent Area Codes | 270,364,629,931 |
| Overlay Area Codes | 629,931 |
| Cannon County |
| Cheatham County |
| Davidson County |
| DeKalb County |
| Dickson County |
| Macon County |
| Robertson County |
| Rutherford County |
| Smith County |
| Sumner County |
| Trousdale County |
| Williamson County |
| Wilson County |
| Brentwood |
| Franklin |
| Gallatin |
| Hendersonville |
| La Vergne |
| Lebanon |
| Mount Juliet |
| Murfreesboro |
| Nashville |
| Smyrna |