Area Code 603-918 located in HAMPTON, ROCKINGHAM, NH, more detail is as below. Place NPA (Numbering Plan Area) : 603 NXX (Local Number Prefix) : 918 City : HAMPTON County : ROCKINGHAM State : NH (New Hampshire) NXX Use Type : Wireless NXX Intro Version : 2002-08-04 FIPS (Federal Information Processing Standards) : 33015 LATA (Local Access Transport Area) : 122 Rate Center : HAMPTON ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 03842 Other Information NPANXX : 603918 County Population : 0 Switch CLLI (Common Language Location Identifier) : HKSTNHECCM0 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 : BELL ATLANTIC NYNEX MOBILE OCN (Operating Company Number) : 6386 Coverage Area Name : HAMPTON Latitude : 42.9369 Longitude : -70.8305 ‹ previous : 603-917 next › : 603-920 Telephone Number List 603-918-0000 ~ 603-918-9999