978 Area Code
Northern Massachusetts, Massachusetts
Area code 978 is located in Northern Massachusetts, Massachusetts. It covers Lowell, Lawrence, and surrounding areas in the Eastern time zone (UTC-5). Administered by NANPA.
Where is area code 978?
Area code 978 is located in Northern Massachusetts, Massachusetts. It covers Lowell, Lawrence, and surrounding areas in the Eastern time zone (UTC-5).
Area code 978 is overlaid by area code 351. Both codes serve the same geographic region and require 10-digit dialing for local calls.
Cities Covered by Area Code 978
Area code 978 primarily serves the Northern Massachusetts area of Massachusetts. The exact coverage includes Lowell, Lawrence, and Haverhill, along with surrounding communities and suburbs.
Time Zone
Eastern Time — UTC-5
Area code 978 operates in the Eastern Time Zone. When calling 978 numbers from a different time zone, be sure to account for the time difference to reach people during business hours.
About Area Code 978
Area code 978 was introduced in 1997 as a geographic area code serving Northern Massachusetts, Massachusetts. As demand for phone numbers grew, overlay code 351 was added to the same region, requiring 10-digit dialing for local calls. Area codes are administered by NANPA (North American Numbering Plan Administration), the organization responsible for managing phone number resources in the US and Canada.