Tennessee Area Codes
| State: | Tennessee (TN) |
| Area Codes: | 7 |
| Timezone: | Central (CDT) |
| Current Time: | 1:10 AM |
About Tennessee Area Codes
Tennessee (TN) uses 7 telephone area codes to serve its residents and businesses. With an estimated population of 6,172,183, Tennessee is one of the moderately coded states in the North American Numbering Plan (NANP). The state is primarily in the Central Time Zone (CDT). The current local time in Tennessee is 1:10 AM.
The largest cities in Tennessee include Nashville (pop. 1,081,903), Memphis (pop. 1,066,967), Knoxville (pop. 586,048), Chattanooga (pop. 415,501) and Clarksville (pop. 188,746) . Tennessee has 95 counties spread across its territory. Each area code in TN covers a geographic region of the state, with some areas using overlay codes that share the same geographic territory as an existing area code.
When calling a Tennessee phone number from outside the area code, you must dial the full 10-digit number: the 3-digit area code followed by the 7-digit local number. Many parts of Tennessee now require 10-digit dialing even for local calls due to overlay area codes and the nationwide 988 Suicide & Crisis Lifeline implementation.
All Tennessee Area Codes
The table below lists every active area code in Tennessee, along with the major city served and other cities covered by each code.
| Area Code | Major City | Other Cities |
|---|---|---|
| 423 | Knoxville | Chattanooga, Johnson City, Kingsport, Cleveland, Bristol, Morristown, Greeneville, La Follette and more |
| 615 | Nashville | Murfreesboro, Franklin, Hendersonville, Smyrna, Spring Hill, Gallatin, Brentwood, Lebanon and more |
| 629 | Nashville | Brentwood, Lebanon |
| 731 | Memphis | Jackson, Collierville, Dyersburg, Arlington, Paris, Martin, Union City, Brownsville and more |
| 865 | Nashville | Knoxville, Morristown, Maryville, Oak Ridge, Sevierville, Harriman, Newport, Clinton and more |
| 901 | Memphis | Jackson, Collierville, Germantown, Arlington, Millington, Covington, Munford, Whiteville and more |
| 931 | Nashville | Clarksville, Cookeville, Spring Hill, Brentwood, Columbia, Lebanon, Shelbyville, Tullahoma and more |
Largest Cities in Tennessee
These are the largest cities in Tennessee by population, along with their primary area codes and counties.
| City | Population | County |
|---|---|---|
| Nashville | 1,081,903 | Davidson County |
| Memphis | 1,066,967 | Shelby County |
| Knoxville | 586,048 | Knox County |
| Chattanooga | 415,501 | Hamilton County |
| Clarksville | 188,746 | Montgomery County |
| Murfreesboro | 179,951 | Rutherford County |
| Johnson City | 127,571 | Washington County |
| Kingsport | 119,666 | Sullivan County |
| Franklin | 83,097 | Williamson County |
| Jackson | 74,065 | Madison County |
Frequently Asked Questions
Tennessee is primarily in the Central Time Zone (CDT).
The current local time is 1:10 AM.
The area code covering the most cities in Tennessee is 423, which serves Knoxville and 71+ other communities.
Yes, most areas in Tennessee now require 10-digit dialing (area code + 7-digit number) for all local calls. This requirement was implemented across the United States starting in October 2021 to support the 988 Suicide & Crisis Lifeline. Even if you are calling within the same area code, you need to dial all 10 digits.
To call a Tennessee number from within the United States, dial the area code followed by the 7-digit phone number (e.g., 423-XXX-XXXX). From outside the US, dial your country's exit code, then 1 (the US country code), then the full 10-digit number.
Tennessee has 95 counties.
The state's total estimated population is 6,172,183, spread across these counties and served by 7 area codes.
Nashville is served by area code
423.
Tennessee has 7 area codes in total — see the complete list above.
