Which state does the area code 931 covers?
The 931 area code covers middle Tennessee. The area code is assigned to a horseshoe-shaped region comprised of 28 counties in middle Tennessee, with the exception of the Nashville metropolitan area. The 931 area code was created in September 1997 from the 615 area code, which is now restricted to Nashville. Sources: http://www.areacodelocations.info/9/931.
