Tennessee area codes
8 area codes currently serve Tennessee. The state's numbering history begins in 1947 with 901. Most recent addition: 729, in service since 2025.
Coverage runs through 615 (Nashville), 423 (Chattanooga), 901 (Memphis), 931 (Clarksville), 865 (Knoxville), 731 (Jackson), 629 (Nashville); prefix counts in the table approximate each code's numbering footprint.
2 overlay complexes operate in Tennessee: 423/729, 615/629. Inside a complex the codes share territory and local calls take ten digits.
Since 2010 the state has gained 2 codes: 629 (2015), 729 (2025).
Tennessee numbering spans Eastern and Central time, and some individual codes straddle the boundary themselves.
Toll-free callers are a separate story: 800-family numbers carry no Tennessee geography at all, so an 833 or 877 number is never "from" the state — it belongs to whichever business rents it, anywhere in the NANP.
A number in any of these codes was issued in Tennessee, but portability means its owner may be anywhere today — the codes locate numbers, not people. To dig further, open a code's prefix or cities pages.
| Code | Major area | In service | Overlay complex | Prefixes |
|---|---|---|---|---|
| 423 | Chattanooga | 1995 | 423/729 | 758 |
| 615 | Nashville | 1954 | 615/629 | 779 |
| 629 | Nashville | 2015 | 615/629 | 188 |
| 729 | — | 2025 | 423/729 | — |
| 731 | Jackson | 2001 | — | 393 |
| 865 | Knoxville | 1999 | — | 498 |
| 901 | Memphis | 1947 | — | 611 |
| 931 | Clarksville | 1997 | — | 533 |
FAQ
How many area codes does Tennessee have?
8 geographic area codes are currently in service: 423, 615, 629, 729, 731, 865, 901, 931.
What was Tennessee's first area code?
901, in service since 1947.
Will Tennessee get a new area code soon?
Not soon. The earliest exhaust forecast in the state is 901 at 2Q 2042, so current codes have ample capacity.
Which time zone are Tennessee numbers in?
Tennessee codes span Eastern and Central time; check each code's page for its zone.