The 717 area code has covered Lancaster and other parts of central Pennsylvania since it was originally created in 1947 as one of the state’s first area codes. Today, 717 is still used across the Lancaster region, spanning the city itself as well as areas like Harrisburg and York.

Nearby area codes are 610/484 to the east and 724 to the west. Having a local 717 area code helps businesses establish credibility with customers throughout central PA.