Area Code 603-830 located in CARROLL, CARROLL, NH, more detail is as below. Place NPA (Numbering Plan Area) : 603 NXX (Local Number Prefix) : 830 City : CARROLL County : CARROLL State : NH (New Hampshire) NXX Intro Version : 5/12/2010 Rate Center : WOLFEBORO ZIP Code Count : 0 ZIP Code Frequency : 0 Other Information NPANXX : 603830 County Population : 0 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Latitude : None Longitude : None ‹ previous : 603-829 next › : 603-831 Telephone Number List 603-830-0000 ~ 603-830-9999
