423 Area Code is part of 20 counties in the state of Tennessee. There are around 58 cities in the 423 area code. The 423 area code is located in the EST timezone. Tennessee has an avarage population of 6,261,151 spread between the coordinates of +35.747845 Latitude and -86.692345 Longitude.
Below you will find more info about 423 Area Code and also zip codes, counties, cities and the post offices that belong to this Area Code.