423 Area Code


Area code 423 is an area code that covers Eastern Tennessee, except Knoxville and its surrounding areas.

Tennessee has area codes of 423, 615, 731, 865, 901, 931.

Time Zone:Central GMT -6:00 with Daylight Saving in the Summer
In Service Date:11-Sep-95

Counties that Use 423 Area Code

Major Cities that Use 423 Area Code

All Cities & Towns that Use 423 Area Code


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Where is 423 area code?

The following map shows the coverage of 423 area code. The coverage area is shown in green.

Area code map of the entire U.S.

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