Tennessee Area CodesTennessee Area Codes for the Largest Cities
Cities within each Tennessee Area Code423 area code423 area code timezone:Eastern / Central 11/01/1999: Area code 423 was split. Some of the phone numbers had to be updated to area code 865 on that date. Area code 423 map Top
615 area code615 area code timezone:Central 09/11/1995: Area code 615 was split. Some of the phone numbers had to be updated to area code 423 on that date. 09/15/1997: Area code 615 was split. Some of the phone numbers had to be updated to area code 931 on that date. 03/28/2015: Area code 629 was created as an overlay to area code 615. The two area codes serve the same area. Area code 615 map Top
901 area code901 area code timezone:Central 02/12/2001: Area code 901 was split. Some of the phone numbers had to be updated to area code 731 on that date. Area code 901 map Top
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