Newmarket, New Hampshire Area Code

Newmarket, NH Area Codes are


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

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

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

New Hampshire Area Code Map