Area Code 603-407 located in NEWPORT, SULLIVAN, NH, more detail is as below. Place NPA (Numbering Plan Area) : 603 NXX (Local Number Prefix) : 407 City : NEWPORT County : SULLIVAN State : NH (New Hampshire) NXX Use Type : Wireless NXX Intro Version : 9/6/2012 FIPS (Federal Information Processing Standards) : 33019 LATA (Local Access Transport Area) : 122 Rate Center : NEWPORT ZIP Code Count : 0 ZIP Code Frequency : 0 ZIP Code : 03773 Other Information NPANXX : 603407 County Population : 0 MSA CBSA (Core Based Statistical Area) : Claremont, NH MSA CBSA Code (Core Based Statistical Area) : 17200 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : BELL ATLANTIC NYNEX MOBILE OCN (Operating Company Number) : 6386 Coverage Area Name : NEWPORT Latitude : 43.3662 Longitude : -72.1733 ‹ previous : 603-404 next › : 603-410 Telephone Number List 603-407-0000 ~ 603-407-9999