781 area code
Area code 781 is in Massachusetts. It covers Lynn, Malden, Waltham and 59 other places: 79 ZIP codes in Middlesex, Norfolk, Plymouth and 2 other counties. Local time there is , Eastern Time. In service since 1997; 339 (2001) overlays it, so a number from there can have either code.
- State
- Massachusetts
- Time zone
- Eastern
- Largest city
- Lynn
- Overlays
- 339
- In service since
- 1997
- Rate centres
- 40
- Prefixes assigned
- 769 (7,690,000 numbers)
Who calls from a 781 number
NANPA records the carrier each block of 781 numbers is assigned to. Of the 7.2 million 781 numbers assigned, 47% are with cable, internet-calling, business and other carriers (Onvoy, Verizon Business and PAETEC (Windstream)); 27% with local phone companies (Verizon); 26% with mobile carriers (T-Mobile and Verizon Wireless).
That is who the numbers were assigned to: people keep their number when they change carrier, so any one number may have moved since.
| Carrier | Kind | Share |
|---|---|---|
| Verizon | Landline | 27% |
| T-Mobile | Mobile | 12% |
| Verizon Wireless | Mobile | 10% |
| Onvoy | Cable, VoIP, other | 9% |
| Verizon Business | Cable, VoIP, other | 7% |
| PAETEC (Windstream) | Cable, VoIP, other | 6% |
An area code says where a number was issued, not where the caller is: people keep their numbers when they move, and caller ID can be set to show any number, which the FCC calls spoofing. If a call you did not expect asks for money or personal details, the FCC advises hanging up and calling the company back on a number you look up yourself. Unwanted calls can be reported to the FTC at ReportFraud.ftc.gov.
Places in area code 781
The 40 places with a telephone rate centre of their own using 781, largest first. Each links to its ZIP codes.
| Place | ZIP codes | Population |
|---|---|---|
| Lynn, MA | 6 | 101,709 |
| Malden, MA | 1 | 65,906 |
| Waltham, MA | 4 | 64,902 |
| Revere, MA | 1 | 60,012 |
| Medford, MA | 2 | 59,354 |
| Weymouth, MA | 1 | 58,505 |
| Arlington, MA | 2 | 46,350 |
| Woburn, MA | 4 | 41,939 |
| Braintree, MA | 2 | 38,899 |
| Randolph, MA | 1 | 34,878 |
| Lexington, MA | 2 | 34,295 |
| Needham, MA | 1 | 32,459 |
| Norwood, MA | 1 | 31,542 |
| Wellesley, MA | 1 | 30,347 |
| Melrose, MA | 1 | 29,650 |
| Stoughton, MA | 1 | 29,225 |
| Saugus, MA | 1 | 28,773 |
| Wakefield, MA | 1 | 27,793 |
| Burlington, MA | 2 | 26,274 |
| Reading, MA | 1 | 25,612 |
| Dedham, MA | 2 | 25,237 |
| Canton, MA | 1 | 24,748 |
| Winchester, MA | 1 | 23,406 |
| Stoneham, MA | 1 | 23,355 |
| Marblehead, MA | 1 | 20,413 |
| Rockland, MA | 1 | 17,701 |
| Whitman, MA | 1 | 15,295 |
| Hanover, MA | 2 | 14,845 |
| Lynnfield, MA | 1 | 13,064 |
| Norwell, MA | 1 | 11,361 |
| Hull, MA | 1 | 10,138 |
| Cohasset, MA | 1 | 8,427 |
| Sharon, MA | 1 | 6,232 |
| Kingston, MA | 1 | 5,910 |
| Scituate, MA | 1 | 5,796 |
| Marshfield, MA | 1 | 5,161 |
| Hingham, MA | 2 | 5,130 |
| Lincoln, MA | 1 | 4,891 |
| Duxbury, MA | 2 | 1,994 |
| Bryantville, MA | 1 | — |
Nearby places using 781
These places have no rate centre of their own in NANPA's records; the nearest one uses 781. Near an area-code boundary that can be wrong for part of a town.
- South Weymouth
- Pembroke
- East Weymouth
- West Newton
- Auburndale
- North Scituate
- Waban
- Ocean Bluff-Brant Rock
- North Pembroke
- South Duxbury
- Marshfield Hills
- Cedar Crest
- Newton Lower Falls
- Green Harbor
- Humarock
- Monponsett
- Accord
- Brant Rock
- Greenbush
- Minot
- North Marshfield
- Ocean Bluff
ZIP codes in area code 781
79 ZIP codes in 59 towns, by the town each is mailed to, largest first. Each links to its own page.
Where 781 numbers are issued
NANPA's rate centres with the most 781 prefixes (each prefix is 10,000 numbers), under NANPA's own abbreviated names.
| Rate centre | Place | Prefixes |
|---|---|---|
WALTHAM | Waltham | 72 |
LEXINGTON | Lexington | 56 |
BURLINGTON | Burlington | 41 |
LYNN | Lynn | 38 |
WOBURN | Woburn | 38 |
DEDHAM | Dedham | 35 |
Counties
The counties of its ZIP codes, most residents first, with how many of its ZIP codes each has.
Which code covers where you are now? What area code am I in? answers from your location.
Questions about area code 781
Where is area code 781?
Area code 781 is in Massachusetts. It covers Lynn, Malden, Waltham and 59 other places: 79 ZIP codes in Middlesex, Norfolk, Plymouth and 2 other counties.
What ZIP codes are in area code 781?
79 ZIP codes, by the town each is mailed to: Lynn (6, 01901 to 01910), Malden (02148), Waltham (4, 02451 to 02454), Revere (02151) and 55 more towns. The full list is on this page.
What time zone is area code 781 in?
Eastern time.
Is a 781 number a mobile or a landline?
It can be either. 26% of 781 numbers are assigned to mobile carriers and 27% to local phone companies (NANPA, 2026-10-10); the rest are with cable, internet-calling, business and paging carriers. A number keeps its area code when it moves to another carrier.
What area codes overlay 781?
339. They cover the same area as 781, so a new number there can be given any of them.
Does a 781 number mean the caller is in Massachusetts?
Not necessarily. An area code says where the number was first issued. People keep their numbers when they move or switch carriers, and calling software can show any number, so a 781 call can come from anywhere.
Other area codes in Massachusetts
All 9 Massachusetts area codes, by area, with the cities each covers
Source: NANPA NPA database, central office code and thousands-block assignments, 2026-10-10. Places are matched to NANPA's rate centres by name; see sources.
Cite this page
zipcodes.pro. “Area code 781.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/area-code/781
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