423 area code is a telephone area code in the North American Numbering Plan (NANP) for Chattanooga and the surrounding area in the state of Tennessee, United States. The area code was created in 1995.
| Area Code | 423 |
|---|---|
| Major City | Chattanooga |
| Service Date | 09/11/1995 |
| Time Zone | Eastern / Central |
| Overlay Complex | - |
| Location | Tennessee (TN) |
| Country | United States |
Some of the cities served by the 423 area code include Chattanooga, Johnson City, Kingsport, Cleveland, Morristown, Bristol, East Ridge, Greeneville, Elizabethton and more.
| Area code | City/Town | County |
|---|---|---|
| 423 | Afton | Greene |
| 423 | Apison | Hamilton |
| 423 | Arthur | Claiborne |
| 423 | Athens | McMinn |
| 423 | Bakewell | Hamilton |
| 423 | Benton | Polk |
| 423 | Birchwood | Hamilton |
| 423 | Blountville | Sullivan |
| 423 | Bluff City | Sullivan |
| 423 | Bristol | Sullivan |
| 423 | Bulls Gap | Hawkins |
| 423 | Butler | Johnson |
| 423 | Bybee | Cocke |
| 423 | Calhoun | McMinn |
| 423 | Caryville | Campbell |
| 423 | Charleston | Bradley |
| 423 | Chattanooga | Hamilton |
| 423 | Chuckey | Greene |
| 423 | Church Hill | Hawkins |
| 423 | Clairfield | Claiborne |
| 423 | Cleveland | Bradley |
| 423 | Coalfield | Morgan |
| 423 | Coker Creek | Monroe |
| 423 | Collegedale | Hamilton |
| 423 | Conasauga | Polk |
| 423 | Copperhill | Polk |
| 423 | Cosby | Cocke |
| 423 | Cumberland Gap | Claiborne |
| 423 | Dayton | Rhea |
| 423 | Decatur | Meigs |
| 423 | Deer Lodge | Morgan |
| 423 | Del Rio | Cocke |
| 423 | Delano | Polk |
| 423 | Ducktown | Polk |
| 423 | Duff | Campbell |
| 423 | Dunlap | Sequatchie |
| 423 | Eagan | Claiborne |
| 423 | Eidson | Hawkins |
| 423 | Elgin | Scott |
| 423 | Elizabethton | Carter |
| 423 | Englewood | McMinn |
| 423 | Erwin | Unicoi |
| 423 | Etowah | McMinn |
| 423 | Evensville | Rhea |
| 423 | Fall Branch | Washington |
| 423 | Farner | Polk |
| 423 | Flag Pond | Unicoi |
| 423 | Georgetown | Meigs |
| 423 | Grandview | Rhea |
| 423 | Graysville | Rhea |
| 423 | Greeneville | Greene |
| 423 | Guild | Marion |
| 423 | Hampton | Carter |
| 423 | Harrison | Hamilton |
| 423 | Harrogate | Claiborne |
| 423 | Hartford | Cocke |
| 423 | Helenwood | Scott |
| 423 | Hixson | Hamilton |
| 423 | Huntsville | Scott |
| 423 | Jacksboro | Campbell |
| 423 | Jasper | Marion |
| 423 | Jellico | Campbell |
| 423 | Johnson City | Washington |
| 423 | Jonesborough | Washington |
| 423 | Kingsport | Sullivan |
| 423 | Kyles Ford | Hancock |
| 423 | LaFollette | Campbell |
| 423 | Lancing | Morgan |
| 423 | Laurel Bloomery | Johnson |
| 423 | Limestone | Washington |
| 423 | Lone Mountain | Claiborne |
| 423 | Lookout Mountain | Hamilton |
| 423 | Lowland | Hamblen |
| 423 | Lupton City | Hamilton |
| 423 | Madisonville | Monroe |
| 423 | Mc Donald | Bradley |
| 423 | Midway | Greene |
| 423 | Milligan College | Carter |
| 423 | Mohawk | Greene |
| 423 | Mooresburg | Hawkins |
| 423 | Morristown | Hamblen |
| 423 | Mosheim | Greene |
| 423 | Mount Carmel | Hawkins |
| 423 | Mountain City | Johnson |
| 423 | Mountain Home | Washington |
| 423 | New Tazewell | Claiborne |
| 423 | Newcomb | Campbell |
| 423 | Newport | Cocke |
| 423 | Niota | McMinn |
| 423 | Oakdale | Morgan |
| 423 | Ocoee | Polk |
| 423 | Old Fort | Polk |
| 423 | Oliver Springs | Roane |
| 423 | Oneida | Scott |
| 423 | Ooltewah | Hamilton |
| 423 | Parrottsville | Cocke |
| 423 | Petros | Morgan |
| 423 | Pikeville | Bledsoe |
| 423 | Piney Flats | Sullivan |
| 423 | Pioneer | Campbell |
| 423 | Pruden | Claiborne |
| 423 | Reliance | Polk |
| 423 | Riceville | McMinn |
| 423 | Roan Mountain | Carter |
| 423 | Robbins | Scott |
| 423 | Rogersville | Hawkins |
| 423 | Rugby | Morgan |
| 423 | Russellville | Hamblen |
| 423 | Sale Creek | Hamilton |
| 423 | Sequatchie | Marion |
| 423 | Shady Valley | Johnson |
| 423 | Shawanee | Claiborne |
| 423 | Signal Mountain | Hamilton |
| 423 | Sneedville | Hancock |
| 423 | Soddy-Daisy | Hamilton |
| 423 | South Pittsburg | Marion |
| 423 | Speedwell | Claiborne |
| 423 | Spring City | Rhea |
| 423 | Sunbright | Morgan |
| 423 | Surgoinsville | Hawkins |
| 423 | Sweetwater | Monroe |
| 423 | Talbott | Hamblen |
| 423 | Tazewell | Claiborne |
| 423 | Telford | Washington |
| 423 | Tellico Plains | Monroe |
| 423 | Ten Mile | Meigs |
| 423 | Trade | Johnson |
| 423 | Turtletown | Polk |
| 423 | Unicoi | Unicoi |
| 423 | Vonore | Monroe |
| 423 | Wartburg | Morgan |
| 423 | Watauga | Carter |
| 423 | Whitesburg | Hamblen |
| 423 | Whiteside | Marion |
| 423 | Whitwell | Marion |
| 423 | Winfield | Scott |