423 Area Code, Where is Area Code 423?

423 Area Code is part of 23 counties in the state of Tennessee. There are around 37 cities and 73 other places such as towns, cdps and villages in the 423 area code. Area code 423 is a telephone area code in the North American Numbering Plan (NANP) for the U.S. state of Tennessee. Below you will find more info about Code and also zip codes, counties, cities and the post offices that belong to this Area Code.

Counties that Use 423 Area Code

423 Area Code covers 23 Counties

Major Cities that Use 423 Area Code

423 Area Code covers 37 Major Cities

All Places, Towns or Villages that Use 423 Area Code

423 Area Code covers 73 Towns, Villages or other places

Apison Baileyton Banner Hill Benton Bloomingdale Blountville Bulls Gap Calhoun Caryville Central Coalfield Colonial Heights Cumberland Gap Decatur East Cleveland Elgin Englewood Erwin Fairmount Fall Branch Falling Water Fincastle Flat Top Mountain Gray Graysville Greeneville Harrison Helenwood Hopewell Hunter Huntsville Jacksboro Jasper Jonesborough Kimball Lone Oak Lookout Mountain Middle Valley Mooresburg Mosheim Mount Carmel Mountain City Mowbray Mountain New Tazewell Oak Grove Oakdale Oneida Ooltewah Orme Parrottsville Petros Pine Crest Powells Crossroads Riceville Roan Mountain Robbins Rogersville Sale Creek Signal Mountain Sneedville South Cleveland Spring City Spurgeon Surgoinsville Tazewell Telford Tellico Plains Unicoi Vonore Walden Walnut Hill Wildwood Lake Winfield

Sources: North American Numbering Plan Administration (NANPA), telecom providers, and the U.S. Census Bureau.