Area Code 603-861 located in TAMWORTH, CARROLL, NH, more detail is as below. Place NPA (Numbering Plan Area) : 603 NXX (Local Number Prefix) : 861 City : TAMWORTH County : CARROLL State : NH (New Hampshire) NXX Use Type : Landline NXX Intro Version : 1998-08-14 FIPS (Federal Information Processing Standards) : 33003 LATA (Local Access Transport Area) : 122 Rate Center : TAMWORTH ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 03886 Other Information NPANXX : 603861 County Population : 0 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 : TAMWORTH Latitude : 43.8625 Longitude : -71.2625 ‹ previous : 603-860 next › : 603-862 Telephone Number List 603-861-0000 ~ 603-861-9999