Area Code: 423

This page provides the list of 5-digit zip codes corresponding to the area code 423.
There are 250 zip codes corresponding to area code 423.
You can click on the zip code to view the specific information, or check the list of all the 9-digit zip codes.

If you want to know more about Area Code 423, including prefix, state, city, usage, carrier and etc. Click to view: 423