Area Code 603-878 located in GREENVILLE, HILLSBOROUGH, NH, more detail is as below. Place NPA (Numbering Plan Area) : 603 NXX (Local Number Prefix) : 878 City : GREENVILLE County : HILLSBOROUGH State : NH (New Hampshire) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 33011 LATA (Local Access Transport Area) : 122 Rate Center : GREENVILLE ZIP Code Count : 1351 ZIP Code Frequency : 40 ZIP Code : 03048 Other Information NPANXX : 603878 County Population : 0 Switch CLLI (Common Language Location Identifier) : GNVLNHADRS1 MSA CBSA (Core Based Statistical Area) : Manchester-Nashua, NH MSA CBSA Code (Core Based Statistical Area) : 31700 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : NO NEW ENGLAND TEL OP DBA FAIRPOINT COMM - NH OCN (Operating Company Number) : 5113 Coverage Area Name : GREENVILLE Latitude : 42.7659 Longitude : -71.8107 ‹ previous : 603-877 next › : 603-878 Telephone Number List 603-878-0000 ~ 603-878-9999