Area code 724 serves western Pennsylvania outside of the Pittsburgh metro area, including cities such as Greensburg, New Castle, Butler, and Washington. It was created in 1998 from a split of the 412 area code to better serve the surrounding suburban and rural communities. The region is known for its industrial roots, scenic Appalachian foothills, and growing suburban corridors. In 2001, area code 878 was overlaid on 724 and 412, requiring ten-digit dialing. Despite the overlay, 724 remains a prominent and widely recognized code in western Pennsylvania’s communications landscape.