Quick answer
Tennessee has 7 active geographic area codes covering Nashville, Chattanooga, Memphis. The most-recognized codes are 901, 615, 423, serving Nashville and the Nashville Metro region.
- Total codes
- 7
- Top metro
- Nashville
- Time zones
- ET, CT
- Largest code
- 615 (Nashville)
Area codes in Tennessee
Tennessee is served by 7 active geographic area codes in the North American Numbering Plan. These codes were assigned between 1947 and 2015 as population and call demand grew across the state.
| Code | Primary City | Region | Established | Overlay Codes | Population |
|---|---|---|---|---|---|
| 423 | Chattanooga | East Tennessee | 1995 | — | 1,200,000 |
| 615 | Nashville | Nashville Metro | 1954 | 629 | 2,000,000 |
| 629 | Nashville | Nashville Metro | 2015 | 615 | 2,000,000 |
| 731 | Jackson | Western Tennessee | 2001 | — | 400,000 |
| 865 | Knoxville | Knoxville Metro | 1999 | — | 800,000 |
| 901 | Memphis | Memphis Metro | 1947 | — | 1,000,000 |
| 931 | Clarksville | Middle Tennessee (non-Nashville) | 1995 | — | 700,000 |
Time zones in Tennessee
Tennessee spans 2 time zones. When calling Tennessee customers, check the area code's time zone to avoid reaching them outside business hours.
- ET — area codes: 423, 865
- CT — area codes: 615, 629, 731, 901, 931
Top metros and their area codes
Below are the primary cities in Tennessee and the area codes that serve each metro. Cities with multiple codes share geography due to overlay assignments added as demand grew.
- Chattanooga — 423
- Clarksville — 931
- Jackson — 731
- Knoxville — 865
- Memphis — 901
- Nashville — 615 , 629
Why get a local Tennessee number?
A Tennessee area code number gives your business three core advantages:
- Local trust signal. Customers in Tennessee recognize local area codes as their own. A familiar caller ID builds immediate credibility for service businesses, sales teams, and patient communication.
- Higher answer rate. Calls from a local area code are answered far more often than toll-free or out-of-area numbers — industry data puts the lift at 20–40%. That difference matters most for outbound sales, appointment confirmations, and service callbacks.
- Targeted marketing. Advertising a local Tennessee number on print, radio, digital, and outdoor channels converts better than a national 800 number for audiences who prefer doing business locally.
How to get a Tennessee area code number with DialPhone
Setting up a Tennessee business number takes under 10 minutes:
- Sign up for a DialPhone plan. Choose any plan starting at $24/user/month. Free 14-day trial, no credit card required.
- Search available Tennessee numbers. Filter the DialPhone number inventory by state, area code, city, or number pattern.
- Choose your number and configure. Assign your new Tennessee number to a user or team, configure call routing, voicemail, AI receptionist, and business SMS.
- Port your existing number (optional). Already have a Tennessee number? Free number porting completes in 2 to 5 business days with zero service interruption.