MASSACHUSETTS · AREA CODE GUIDE
781 area code location: Lynn, Malden, and Waltham, Massachusetts
- Local date and time
- Eastern Time
Map data: HSIP (2010) · NANPA · US Census Bureau, checked 26 September 2026. Boundaries are approximate.
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Download the 781 area code map
A printable area code 781 location map, with time zone and state. Use the PNG image in a document or slide; the SVG stays sharp at any size.
781 area code at a glance
- State
- Massachusetts
- Primary cities
- Lynn, Malden, and Waltham
- Established
- Population
- Largest community: Lynn, 104,236 (2025)Not an area-code population.
- Prefixes in service
- 769 as of 13 October 2026
An area code does not show where a caller is now.
History
Country and calling code: United States (+1).
Parent code: 617.
New code planned: No, as of 22 September 2026.
- : 339 added as an overlay on 781
Time zone
- Eastern Time
- Standard time UTC−05:00
- Daylight saving time UTC−04:00
Counties and cities covered
781 numbers are issued across 40 communities. These are telephone exchange areas, which follow the phone network rather than city limits, so a place can sit just outside the boundary of the town it is named for.
Counties of the communities we could place (the code may reach further): Middlesex County, Plymouth County, Norfolk County, Essex County, and Suffolk County.
- Lynn
- Malden
- Waltham
- Revere
- Medford
- Woburn
- Stoughton
- Melrose
- Canton
- Rockland
- Whitman
- Hanover
- Norwell
- Cohasset
- Lincoln
- Arlington
- Braintree
- Bryantville
- Burlington
- Dedham
- Duxbury
- Hingham
- Hull
- Kingston
- Lexington
15 more communities
- Lynnfield
- Marblehead
- Marshfield
- Needham
- Norwood
- Randolph
- Reading
- Saugus
- Scituate
- Sharon
- Stoneham
- Wakefield
- Wellesley
- Weymouth
- Winchester
Notable places in 781
| Place | Where | What it is |
|---|---|---|
| Tufts University | 2.1 km from Medford | University, 14,945 12-month enrollment (2023–24) |
| Brandeis University | 3.0 km from Waltham | University, 5,803 12-month enrollment (2023–24) |
| Wellesley College | 2.5 km from Wellesley | University, 2,503 12-month enrollment (2023–24) |
| Hanscom Air Force Base | 5.3 km from Lincoln | Military base |
| Norwood Memorial Airport | 1.9 km from Norwood | Airport |
| Hanscom Field | 5.3 km from Lincoln | Commercial airport |
| Cranland Airport | 2.1 km from Bryantville | Airport |
| Stone Zoo | 1.3 km from Stoneham | Zoo |
| Naval Air Station South Weymouth | 3.3 km from Rockland | Military base |
| Minute Man National Historical Park | 3.2 km from Lincoln | National Historical Park |
Area code 339 has its own page.
Area code 781
781 started service on .It came from 617.
No new code is planned for the region as of .
Questions about 781
Where is the 781 area code?
781 is in Massachusetts. Its numbers are issued in Lynn, Malden, Waltham, and 37 other communities.
What time zone is area code 781 in?
781 is in Eastern Time. Daylight saving time is observed.
Does 781 have an overlay?
Yes. 339 was added as an overlay on 781 on 2 May 2001.
What cities are in the 781 area code?
Lynn, Malden, Waltham, Revere, and Medford, and 35 other communities.
What state is area code 781 in?
Area code 781 is in Massachusetts.
What counties are covered by area code 781?
Area code 781 covers communities in Middlesex County, Plymouth County, Norfolk County, Essex County, and Suffolk County.
Is 781 a toll-free area code?
No. 781 is a geographic area code. The toll-free codes are 800, 833, 844, 855, 866, 877, and 888.
Sources: NANPA area code listing, NANPA places by area code, NANPA central office code assignments, U.S. Census Bureau population estimates, OMB metropolitan area delineations. Checked .
Business phone numbers in area code 781, answered by an AI agent
A local number for Lynn, Malden, and Waltham, Massachusetts, with an AI receptionist that takes caller details, answers the questions you give it, and books appointments. Numbers depend on what carriers have left.