Area Code 717-523 located in MOUNTVILLE, LANCASTER, PA, more detail is as below. Place NPA (Numbering Plan Area) : 717 NXX (Local Number Prefix) : 523 City : MOUNTVILLE County : LANCASTER State : PA (Pennsylvania) NXX Use Type : Landline NXX Intro Version : 2006-06-01 FIPS (Federal Information Processing Standards) : 42071 LATA (Local Access Transport Area) : 226 Rate Center : MOUNTVILLE ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 17554 Other Information NPANXX : 717523 Switch CLLI (Common Language Location Identifier) : HRBGPAHAXYY MSA CBSA (Core Based Statistical Area) : Lancaster, PA MSA CBSA Code (Core Based Statistical Area) : 29540 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : CORE COMMUNICATIONS, INC. - PA OCN (Operating Company Number) : 3806 Coverage Area Name : TOWER CITY Latitude : 40.5934 Longitude : -76.5474 ‹ previous : 717-522 next › : 717-524 Telephone Number List 717-523-0000 ~ 717-523-9999