Area Code 603-379 located in NORTH HAMPTON, ROCKINGHAM, NH, more detail is as below. Place NPA (Numbering Plan Area) : 603 NXX (Local Number Prefix) : 379 City : NORTH HAMPTON County : ROCKINGHAM State : NH (New Hampshire) NXX Use Type : Landline NXX Intro Version : 1998-08-14 FIPS (Federal Information Processing Standards) : 33015 LATA (Local Access Transport Area) : 122 Rate Center : RYE BEACH ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 03862 Other Information NPANXX : 603379 County Population : 0 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 : BROOKS FIBER COMMUNICATIONS OF NEW HAMPSHIRE - NH OCN (Operating Company Number) : 7778 Coverage Area Name : RYE Latitude : 42.9830 Longitude : -70.7698 ‹ previous : 603-379 next › : 603-380 Telephone Number List 603-379-0000 ~ 603-379-9999