Direct answer
Area code 615 serves Nashville and Middle Tennessee in Tennessee. It is in the Central Time, and ten-digit dialing is required there.
Facts
| Area code | 615 |
| State | Tennessee (TN) |
| Region | Nashville and Middle Tennessee |
| Time zone | Central Time |
| Overlays | 615/629 |
| In service since | 1 January 1954 (split from 901) |
| Dialing rule | Yes — ten-digit dialing is required in this overlay area. |
Areas covered
The 615 footprint covers Nashville, Franklin, Brentwood, Murfreesboro, Hendersonville, and Gallatin. That list describes the area the code serves today, not the larger territory it may have covered when it was first assigned. Tennessee is split between Central and Eastern time, but the 615 footprint is Central only. Callers in this area should always dial the full ten-digit number, including the area code, even for a local call.
History
Area code 615 is not a 1947 original, although some guides describe it that way. In 1947, all of Tennessee used area code 901. Area code 615 was created on 1 January 1954 as a split from 901, taking the middle and eastern two-thirds of Tennessee at that time. Area code 423 split off in 1995 for eastern Tennessee, and 931 split off in September 1997 for Clarksville, Cookeville, Columbia, Tullahoma, and the outer Middle Tennessee belt, leaving 615 with the Nashville core. Area code 629 was added as an overlay, and NANPA records 629 in service on 28 March 2015. Ten-digit dialing is therefore required in the Nashville area, and new numbers there can carry 615 or 629.
Dialing
Dialing rule: Yes — ten-digit dialing is required in this overlay area. The reason is the overlay structure in the facts table above, except where this page states a different reason, as it does for 616. From outside the United States, the country code for the United States is 1, followed by the area code and the local number. This page explains the area code only; it does not identify who owns a number or where a phone is.
Calls and spoofing
A call that shows a familiar area code is not proof of who is calling. Caller ID can be spoofed, so a number that looks local may come from anywhere. Do not share personal or financial details because of the number on the screen, and hang up and call back on a number you trust if a caller asks for money, codes, or account access. This site does not identify callers or phone owners, and it does not list reported spam numbers.
Related codes
629 (overlay); 901 (original statewide code, not a Batch 1 page).
Frequently asked questions
Where is 615 area code?
Area code 615 is in Tennessee, covering Nashville and Middle Tennessee. It does not cover the whole state.
What time zone is 615 area code?
Area code 615 is in the Central Time. Tennessee is split between Central and Eastern time, but the 615 footprint is Central only.
What area codes overlay 615?
The overlay codes for 615 are 629. The full overlay group is 615/629. New numbers in the same territory can carry any code in the group.
Do I need to dial 10 digits for 615?
Yes — ten-digit dialing is required in this overlay area.
When did 615 area code go into service?
Area code 615 has been in service since 1 January 1954 (split from 901).
Sources
NANPA area code search; Tennessee Regulatory Authority material cited in secondary guides
Based on a recent search of NANPA and official sources.
This website provides general information about North American area codes, compiled from public sources including NANPA. It is not affiliated with or endorsed by the FCC, NANPA or any telephone carrier. Area code details can change; confirm with your carrier or the official NANPA website. This site does not identify callers or phone owners.