List of Kentucky area codes
The Commonwealth of Kentucky is divided into four geographically distinct numbering [plan area]s of the North American [Numbering Plan], which are served by five area codes, with one NPA configured as an overlay complex of two area codes.
| Area code | Year created | Parent NPA | Overlay | Numbering plan area |
| 502 | 1947 | – | – | Louisville and Frankfort |
| 606 | 1954 | 502 | – | Eastern Kentucky, including the Eastern [Kentucky Coalfield|Eastern Coalfield] |
| 859 | 1999 | 606 | – | Lexington area and Northern Kentucky |
| 270 | 1999 | 502 | 270/364 | Western Kentucky and the western half of South Central Kentucky |
| 364 | 2014 | 270 | 270/364 | Western Kentucky and the western half of South Central Kentucky |