List of Tennessee area codes
The U.S. state of Tennessee is divided into six geographically distinct numbering plan areas (NPAs) in the North American Numbering Plan (NANP) which are serviced by a total of eight area codes.
| Area code |
Year created |
Parent NPA |
Overlay | Numbering plan area |
|---|---|---|---|---|
| 901 | 1947 | – | – | Memphis |
| 615 | 1954 | 901 | 615/629 | Greater Nashville, including Murfreesboro, Mount Juliet |
| 629 | 2015 | 615 | ||
| 931 | 1997 | 615 | – | Clarksville, Columbia, Manchester, Cookeville |
| 423 | 1995 | 615 | 423/729 | Chattanooga, Johnson City, Kingsport, Bristol |
| 729 | 2025 | 423 | ||
| 865 | 1999 | 423 | – | Knoxville |
| 731 | 2001 | 901 | – | Jackson, Dyersburg, Union City |