Area Code "717" Details & History:
Area code 717 is a telephone area code which serves south central Pennsylvania, used in the Harrisburg-Lancaster-York metropolitan areas. 717 was one of the original area codes established in 1947. The 717 area code was split on December 5, 1998, creating area code 570. Pennsylvania area code 717 has been in service since 1947. It has 499 landlines and 154 wireless prefixes (exchanges) serviced by 38 carriers. It covers 20 counties, 842 ZIP codes, and 215 cities, including Harrisburg, Lancaster, York, Mechanicsburg, Lebanon, Carlisle, Chambersburg, Hanover, and Camp Hill.
Counties served by this Area Code:
Adams, Berks, Cumberland, Dauphin, Franklin, Fulton, Huntingdon, Juniata, Lancaster, Lebanon, Mifflin, Perry, Potter, and York!