North American Numbers Source-cited · ownership disclosed
Area code
615
In service
United States · since 1954

Nashville

The primary area code for Nashville and the Middle Tennessee metropolitan core, in an all-services overlay with 629 since 2015.

The essentials Numbering data · NumberResearch · as of 2026-09-18
Place
Nashville
Type
geographic
Status
in service
In service since
1954
Projected exhaust
2057 Q3

Status, dates and counts are read from NumberResearch (NANPA / CNAC / FCC records). Assignment records show initial assignees, not the carrier serving a number today.

A · Where it is

Where 615 is

Davidson County (Nashville) plus twelve surrounding Middle Tennessee counties..

Communities served wholly or partly by 615:

NashvilleMurfreesboroFranklinBrentwoodGallatinHendersonvilleLebanonMount Juliet
B · Relationships

How it relates to other codes

The codes 615 was split from, spawned, or shares its area with. A split divides the map and changes some numbers; an overlay shares the same ground and changes none — what's the difference?

Split from · 1954 901 Memphis Tennessee split in 1954; 615 covered the state east of the Tennessee River's western bend while 901 kept West Tennessee.
Spawned · 1995 423 Chattanooga / Tri-Cities Eastern Tennessee (Chattanooga, Knoxville, Tri-Cities) split off from 615 in 1995.
Spawned · 1997 931 Clarksville / Columbia Outer Middle Tennessee split off from 615 in 1997, reducing 615 to the Nashville metro core.
Overlay · 2015 629 Nashville (overlay) All-services overlay of the same geography; new numbers assigned as 629.
What's changing. Overlaid by 629 since 2015; ten-digit dialing mandatory.
C · History

How 615 got here

1954
Area code 615 created via flash-cut, covering most of Tennessee east of the Tennessee River's western bend.
Source: Wikipedia
1995-09
Eastern portion split off as area code 423 (Chattanooga, Knoxville, Tri-Cities); first new TN area code in 41 years.
Source: Wikipedia
1997-09
Outer portions reassigned to new area code 931, leaving 615 as the inner Nashville metro.
Source: Wikipedia
2015-02
Ten-digit dialing became mandatory (late February 2015) with the 629 overlay.
Source: Wikipedia
D · Capacity

How full it is

Prefixes assigned
800
Prefixes available
0
Thousands-blocks assigned
3,627

Prefix-assignment counts describe allocation to carriers, not how many individual numbers are in use. Full technical records: NumberResearch ↗.

Compare 615 with another code →
Sources
Wikipedia ↗
Area codes 615 and 629
NumberResearch.org ↗
Live status, dates, assignment counts and exhaust forecast — data as of 2026-09-18 (CC BY 4.0).

Place, relationships and history above are compiled by North American Numbers from the sources listed and last checked 2026-09-18. A check date is not an expert review — see how this is made. Flag an error.