Area Code 423
Tennessee (TN) • Chattanooga, Johnson City, Kingsport, Cleveland, Greeneville, Morristown, Afton, Apison • Central Time (CT)
What Stands Out
- •Coverage: 1.4M people across 151 ZIP codes.
- •Major cities: Chattanooga, Johnson City, Kingsport.
Spotlight: Coverage
Snapshot highlights for area code 423.
Income
35th
Home values
52nd
Low poverty
29th