- Source: Area code 931
North American area code 931 is the telephone area code serving a horseshoe-shaped region of 28 counties in Middle Tennessee. It covers almost all of Middle Tennessee except for the Nashville metropolitan area.
The 931 area code was created in 1997 from area code 615, which had previously covered almost all of Middle Tennessee, but afterwards was restricted to the inner ring of Nashville. Area code 931 began operation on September 15, 1997. Permissive dialing of 615 continued across Middle Tennessee until January 15, 1998.
Cities covered by area code 931
Counties covered by area code 931
Source:
References
External links
NANPA area code map of Tennessee
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- Area code 931
- Area codes 615 and 629
- List of North American Numbering Plan area codes
- Erin, Tennessee
- Area codes 617 and 857
- Area codes 519, 226, 548, and 382
- Area codes 905, 289, 365, and 742
- Area codes 587, 825, and 368
- Area codes 870 and 327
- Area codes 705, 249, and 683
