Hillsboro, New Hampshire Area Code

Hillsboro, NH Area Codes are

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

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

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

New Hampshire Area Code Map