Area code 816 serves the western portion of Missouri, including the Kansas City metropolitan area on the Missouri side. One of the original area codes from 1947, it is now overlaid by 975 due to demand. The region includes Kansas City, Independence, and St. Joseph, blending urban vibrancy with historical roots in jazz, barbecue, and the midwestern economy. Ten-digit dialing is required. Area code 816 is closely associated with Kansas City pride and is widely used in music, local sports, and cultural expressions throughout western Missouri.