List of Tennessee area codes
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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 |