Area Code 423
Area code 423 is associated with Tennessee, Virginia. It connects to 182 ZIP codes across 135 cities, with an estimated combined population of 1,373,598.
Area details
- Area code
- 423
- States covered
- Tennessee, Virginia
- States count
- 2
- ZIP codes
- 182
- Cities
- 135
- Population
- 1,373,598
Related ZIP codes
Open ZIP state pageAbout area code 423
Area code 423 is a useful lookup entry for Tennessee, Virginia. It helps connect phone-number geography with ZIP code coverage, city clusters, and state-level browsing. Use the related ZIP cards above to move deeper into the postal data for this region.
If you are browsing by state, you can continue with Tennessee lookup pages for ZIP codes and area codes.