Area Code 603-544 located in MELVIN VILLAGE, CARROLL, NH, more detail is as below. Place NPA (Numbering Plan Area) : 603 NXX (Local Number Prefix) : 544 City : MELVIN VILLAGE County : CARROLL State : NH (New Hampshire) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 33003 LATA (Local Access Transport Area) : 122 Rate Center : MELVIN VLG ZIP Code Count : 541 ZIP Code Frequency : 76 ZIP Code : 03850 Other Information NPANXX : 603544 County Population : 0 Switch CLLI (Common Language Location Identifier) : MLVGNHXADS0 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : MERRIMACK CO. TELEPHONE CO., DBA CONTOOCOOK VALLEY OCN (Operating Company Number) : 3320 Coverage Area Name : CENTER TUFTONBORO Latitude : 43.6920 Longitude : -71.3025 ‹ previous : 603-544 next › : 603-545 Telephone Number List 603-544-0000 ~ 603-544-9999