Area Code 603-873 located in SUNAPEE, SULLIVAN, NH, more detail is as below. Place NPA (Numbering Plan Area) : 603 NXX (Local Number Prefix) : 873 City : SUNAPEE County : SULLIVAN State : NH (New Hampshire) NXX Use Type : Landline NXX Intro Version : 1998-08-14 FIPS (Federal Information Processing Standards) : 33019 LATA (Local Access Transport Area) : 122 Rate Center : SUNAPEE ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 03782 Other Information NPANXX : 603873 County Population : 0 Switch CLLI (Common Language Location Identifier) : MNCHNHNIDS0 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 : LEVEL 3 COMMUNICATIONS - NH OCN (Operating Company Number) : 4017 Coverage Area Name : SUNAPEE Latitude : 43.3834 Longitude : -72.0816 ‹ previous : 603-872 next › : 603-874 Telephone Number List 603-873-0000 ~ 603-873-9999