What is an Area Code? An area code is a section of a telephone number that denotes the broad area that the phone receiving the call is based in. Area codes were first introduced circa 1947 for operator use only. Area codes are three-digit numbers that represent Numbering Plan Areas (NPAs). The area code for a particular city or region is the series of numbers that you have to dial before someone’s number if you are making a phone call to that place from a different area. Area code 423 serves the state of Tennessee.
The Table Below Shows the Towns and Cities That Use Area Code 423
| Apison Athens Baileyton Banner Hill Benton Bloomingdale Blountville Bluff City Bristol Bulls Gap Calhoun Caryville Central Charleston Chattanooga Church Hill Cleveland Collegedale Colonial Heights Copperhill Cumberland Gap Dayton Decatur Ducktown Dunlap East Cleveland East Ridge Elgin | Elizabethton Englewood Erwin Etowah Fairmount Fall Branch Falling Water Fincastle Flat Top Mountain Gray Graysville Greeneville Harrison Harrogate Helenwood Hopewell Hunter Huntsville Jacksboro Jasper Jellico Johnson City Jonesborough Kimball Kingsport La Follette Lakesite Lone Oak | Lookout Mountain Madisonville Middle Valley Mooresburg Morristown Mosheim Mountain City Mount Carmel Mowbray Mountain New Hope Newport New Tazewell Niota Oakdale Oak Grove Oneida Ooltewah Orme Parrottsville Petros Pikeville Pine Crest Powells Crossroads Red Bank Riceville Ridgeside Roan Mountain Robbins | Rogersville Sale Creek Signal Mountain Sneedville Soddy-Daisy South Cleveland South Pittsburg Spring City Spurgeon Sunbright Surgoinsville Sweetwater Tazewell Telford Tellico Plains Tusculum Unicoi Vonore Walden Walnut Hill Wartburg Watauga Whitwell Wildwood Lake Winfield |