Area Code 603-452 located in BERLIN, COOS, NH, more detail is as below. Place NPA (Numbering Plan Area) : 603 NXX (Local Number Prefix) : 452 City : BERLIN County : COOS State : NH (New Hampshire) NXX Use Type : Landline NXX Intro Version : 1999-05-10 FIPS (Federal Information Processing Standards) : 33007 LATA (Local Access Transport Area) : 122 Rate Center : CONWAY ZIP Code Count : 1 ZIP Code Frequency : 100 ZIP Code : 03570 Other Information NPANXX : 603452 County Population : 0 Switch CLLI (Common Language Location Identifier) : PTMONH07DS0 MSA CBSA (Core Based Statistical Area) : Berlin, NH-VT MSA CBSA Code (Core Based Statistical Area) : 13620 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : FREEDOM RING COMMUNICATIONS, LLC OCN (Operating Company Number) : 8468 Coverage Area Name : CONWAY Latitude : 43.9791 Longitude : -71.1198 ‹ previous : 603-451 next › : 603-453 Telephone Number List 603-452-0000 ~ 603-452-9999