Area code 304 spans the entire state of West Virginia and is among the original NANP codes. Due to increased demand, it is now overlaid by 681. The city of Charleston, the state capital, sits within this area. Nestled in the Appalachian Mountains along the Kanawha River, Charleston is known for its small-town charm, the Clay Center for the Arts and Sciences, and events like FestivALL that celebrate the region's art and music culture.