Area code 717 serves south-central Pennsylvania, including Harrisburg, Lancaster, and York. Introduced in 1947, it is one of the state's original area codes and now shares coverage with overlay 223. The region includes Amish country, Pennsylvania Dutch heritage, and key state government operations in the capital, Harrisburg. Known for agriculture, manufacturing, and historic towns, the area has a strong cultural identity. Ten-digit dialing is required. The 717 area code is a recognized symbol of tradition, history, and the steady heartbeat of central Pennsylvania.