781 Area Code
Eastern Massachusetts (overlay), Massachusetts
Area code 781 is located in Eastern Massachusetts (overlay), Massachusetts. It covers Newton, Waltham, and surrounding areas in the Eastern time zone (UTC-5). Administered by NANPA.
Where is area code 781?
Area code 781 is located in Eastern Massachusetts (overlay), Massachusetts. It covers Newton, Waltham, and surrounding areas in the Eastern time zone (UTC-5).
Area code 781 is overlaid by area code 339. Both codes serve the same geographic region and require 10-digit dialing for local calls.
Cities Covered by Area Code 781
Area code 781 primarily serves the Eastern Massachusetts (overlay) area of Massachusetts. The exact coverage includes Newton, Waltham, and Lynn, along with surrounding communities and suburbs.
Time Zone
Eastern Time — UTC-5
Area code 781 operates in the Eastern Time Zone. When calling 781 numbers from a different time zone, be sure to account for the time difference to reach people during business hours.
About Area Code 781
Area code 781 was introduced in 1997 as a geographic area code serving Eastern Massachusetts (overlay), Massachusetts. As demand for phone numbers grew, overlay code 339 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.