Tennessee · Central Time
615 Area Code
Area code 615 is in Tennessee, serving Nashville and surrounding Middle Tennessee counties. It is in the Central Time zone. It shares its territory with overlay code 629, so 10-digit dialing is required.
Last updated October 1, 2026 · Source: NANPA
Where is the 615 area code?
615 is a Tennessee area code covering Nashville and surrounding Middle Tennessee counties. In the wider directory it sits in the South region.
Cities in the 615 area code
- Nashville
- Murfreesboro
- Franklin
- Hendersonville
- Smyrna
- Brentwood
- Gallatin
- Mount Juliet
- Lebanon
- La Vergne
- Goodlettsville
- Springfield
- Nolensville
Counties served by 615
Davidson County, Rutherford County, Williamson County, Sumner County, Wilson County, Robertson County, Cheatham County, Dickson County, Macon County and Trousdale County.
Time zone note: Eastern in Knoxville and Chattanooga; Central in Nashville, Memphis and most of the state.
615 overlay codes and dialing
The 615 territory is covered by an overlay of 2 area codes: 615, 629. All of them serve the same geographic area, and the original code is 615. Because more than one code covers the same ground, 10-digit dialing is mandatory — you must dial the area code for every local call. New phone lines may be assigned any of these codes.
History of the 615 area code
615 is one of the original area codes assigned in 1947, when AT&T and Bell Laboratories created the North American Numbering Plan and divided the country into the first 86 numbering plan areas. It has served the Nashville area ever since, with 629 later added as an overlay to supply more numbers.
Is 615 a scam or spam risk?
615 is a legitimate geographic area code, not a premium or toll line, so a call from it costs you nothing extra. That said, scammers frequently spoof real local area codes to look familiar on caller ID. A genuine 615 number on your screen is no guarantee the caller is in Nashville, TN or trustworthy. See spam & scam-risk area codes for how spoofing works and how to respond.
Other Tennessee area codes
Explore more
See every code in Tennessee, compare codes across the South region, or view all Central Time codes. You can also browse the 6XX block or the complete numeric list of US area codes.
New to how this all works? Start with how area codes work, then read up on overlays, 10-digit dialing, and spam & scam-risk codes. To check another number, use the area code lookup tool.
Quick answers
615 area code FAQ
Where is the 615 area code?
The 615 area code is in Tennessee, covering Nashville and surrounding Middle Tennessee counties, in the South region.
What cities are in the 615 area code?
Cities in the 615 area code include Nashville, Murfreesboro, Franklin, Hendersonville, Smyrna, Brentwood, Gallatin, Mount Juliet, Lebanon and La Vergne.
What time zone is 615 in?
615 is in the Central Time zone. Eastern in Knoxville and Chattanooga; Central in Nashville, Memphis and most of the state.
What is the overlay for the 615 area code?
615 shares its territory with 629. Both codes (615, 629) serve the same area, so 10-digit dialing is required for every call.
When did the 615 area code start?
615 went into service on January 1, 1954 as one of the original 1947 North American area codes.
Do I have to dial 10 digits for 615?
Yes. Because 615 is an overlay area, you must dial the full 10-digit number (area code + 7 digits) for every call.
Is 615 a toll-free or premium code?
No. 615 is a standard geographic area code, so calling it costs the same as any local or long-distance call on your plan. Toll-free calls use 800, 888, 877, 866, 855, 844 or 833.