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.

New Hampshire Area Code Map