State: Tennessee
Major City: Chattanooga
Time zone: Eastern/Central
Current time:

History of 423 area code

North American area code 423 is a telephone area code for the U.S. state Tennessee. This area code serves two disconnected communities divided by area code 865. 423 was created in 1995 as a split of area code 615.

This area code covered much of east Tennessee. The proliferation of cell phones and pagers drove 423 to the verge of depletion hence 865 was formed and it started working on November 1, 1999. A permissive dialling period of 423 ran until April 22, 2000. Numbering plan area 865 is fully encircled by 423. However, 423 is expected to maintain it non-contagious state till 2027.

Also see: Reverse phone lookup

Top Counties using the area code 423

Hamilton, Sullivan, Washington, Bradley, Greene, Hamble, Carter, Hawkins, McMinn, Monroe, Campbell, Cocke, Claiborne, Rhea, Marion, Scott, Morgan, Unicoi, Johnson, Polk, Sequatchie, Anderson, Meigs, Bledsoe, Hancock, Van Buren.

Top Cities using the area code 423

Chattanooga, Johnson City, Kingsport, Cleveland, Morristown, Bristol, East Ridge, Greeneville, Elizabethton, Athens, Soddy-Daisy, Middle Valley, Red Bank, Bloomingdale, Collegedale, Harrison, Signal Mountain, La Follette, Dayton, Newport, Colonial Heights, South Cleveland, Church Hill, Erwin, Sweetwater, Mount Carmel, Jonesborough, Dunlap, Madisonville, Oak Grove, Rogersville, Harrogate, Spurgeon, Oneida, Unicoi, Etowah, Jasper, Wildwood Lake, Blountville, New Tazewell, South Pittsburg, Sale Creek, Fairmount, Tusculum, Mountain City, Apison, Walnut Hill, Pine Crest, Mosheim,  Jellico.

Most Reported Phone numbers

By doing a free phone number search in Tennessee  you will be able to find the best of information about the person you are looking for. Choose the number that contacted you from the mainly reported numbers in area code 423 below.

423-NXX prefixes and their locations