Marlborough, New Hampshire Area Code

Marlborough, NH Area Codes are


Marlborough, NH is officially utilizing one area code which is area code 603.

In addition to Marlborough, NH area code information read more about area code 603 details and New Hampshire area codes.

Marlborough, NH is located in Cheshire County and observes the Eastern Time Zone. View our Times by Area Code tool.

New Hampshire Area Code Map