Area Code 423 Map and Data

Area Code 423 Profile

Area Code423
StateTennessee
Current Time
in Area Code 423
423>
EST
TimezoneEastern Standard Time
Regional Market AreaKnoxville Area
Metro Chattanooga
Tri-Cities Region
Metro Area(s)Athens, TN
Chattanooga, TN-GA
Cleveland, TN
Dayton, TN
Greeneville, TN
Johnson City, TN
Morristown, TN
Newport, TN
Population (2020)1428730
Adjacent
Area Codes
256,276,336,606,706,743,762,828,865,931,938

Area Code 423 Boundary Map

List of Major Cities/Towns in Area Code 423

Chattanooga
Cleveland
Johnson City
Kingsport
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