Haverhill, New Hampshire Area Code

Haverhill, NH Area Codes are

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

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

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

New Hampshire Area Code Map