Area Code 878-553 located in LARIMER, WESTMORELAND, PA, more detail is as below. Place NPA (Numbering Plan Area) : 878 NXX (Local Number Prefix) : 553 City : LARIMER County : WESTMORELAND State : PA (Pennsylvania) NXX Use Type : Landline NXX Intro Version : 2005-06-25 FIPS (Federal Information Processing Standards) : 42129 ZIP Code Count : 0 ZIP Code Frequency : Second most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 15647 Other Information NPANXX : 878553 MSA CBSA (Core Based Statistical Area) : Pittsburgh, PA MSA CBSA Code (Core Based Statistical Area) : 38300 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Latitude : None Longitude : None ‹ previous : 878-302 next › : 878-553 Telephone Number List 878-553-0000 ~ 878-553-9999