Area Code 717 History:
Area code 717 was put into service. In 1998 area code 717 was split to form area code 570.
Counties in Pennsylvania within area code 717 include:
Adams County, Berks County, Cumberland County, Dauphin County, Franklin County, Fulton County, Huntingdon County, Juniata County, Lancaster County, Lebanon County, Mifflin County, Perry County, Potter County, and York County.
Major cities or places in Pennsylvania within area code 717 include:
Area code 717 serves much of south-central Pennsylvania the larger communities of Gettysburg, Harrisburg, Lancaster, Lebanon, and York in addition to many smaller communities within the area code 717 service area.