Area Code 603-376 located in DOVER, STRAFFORD, NH, more detail is as below. Place NPA (Numbering Plan Area) : 603 NXX (Local Number Prefix) : 376 City : DOVER County : STRAFFORD State : NH (New Hampshire) NXX Use Type : Wireless NXX Intro Version : 1996-04-15 FIPS (Federal Information Processing Standards) : 33017 LATA (Local Access Transport Area) : 122 Rate Center : DOVER ZIP Code Count : 1 ZIP Code Frequency : 100 ZIP Code : 03821 Other Information NPANXX : 603376 County Population : 0 Switch CLLI (Common Language Location Identifier) : DOVRNHTHDS0 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 : NO NEW ENGLAND TEL OP DBA FAIRPOINT COMM - NH OCN (Operating Company Number) : 5113 Coverage Area Name : DOVER Latitude : 43.1943 Longitude : -70.8765 ‹ previous : 603-375 next › : 603-377 Telephone Number List 603-376-0000 ~ 603-376-9999