Dunbarton, New Hampshire Area Code
Dunbarton, NH Area Codes are
Dunbarton, NH is officially utilizing one area code which is area code 603.
In addition to Dunbarton, NH area code information read more about area code 603 details and New Hampshire area codes.
Dunbarton, NH is located in Merrimack County and observes the Eastern Time Zone. View our Times by Area Code tool.
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