Area Code 603-887 located in CHESTER, ROCKINGHAM, NH, more detail is as below. Place NPA (Numbering Plan Area) : 603 NXX (Local Number Prefix) : 887 City : CHESTER County : ROCKINGHAM State : NH (New Hampshire) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 33015 LATA (Local Access Transport Area) : 122 Rate Center : CHESTER ZIP Code Count : 1359 ZIP Code Frequency : 42 ZIP Code : 03036 Other Information NPANXX : 603887 County Population : 0 Switch CLLI (Common Language Location Identifier) : CHESNHXADS0 MSA CBSA (Core Based Statistical Area) : Boston-Cambridge-Quincy, MA-NH MSA CBSA Code (Core Based Statistical Area) : 14460 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : GRANITE STATE TELEPHONE, INC. OCN (Operating Company Number) : 0039 Coverage Area Name : CHESTER Latitude : 42.9542 Longitude : -71.2547 ‹ previous : 603-886 next › : 603-887 Telephone Number List 603-887-0000 ~ 603-887-9999