Approximate service area of Area Code 502 is in red.
Area code 502 serves the state of Kentucky's north central counties, primarily Louisville, its suburbs, and the state capital Frankfort. Its service area encompasses the following Kentucky counties (the boundary closely, but not exactly, tracks county lines):
The area code was one of the first established in October 1947, initially covering the entire state of Kentucky.[2] 606 was split off of it in 1954/1955,[3], and 270 in 1999.[4].