🇺🇸 781 area code
Area code 781 covers Woburn, Burlington, Lexington and Malden and the surrounding area in Massachusetts. It shares that territory with 339, so the same neighbourhood can have numbers in any of them. Enter a 781 number below for a free check before you call back.
- Location: Woburn, Massachusetts
- Time zone: Eastern (UTC−5)
- In service since September 1, 1997
查询号码
首次查询即可得到有效性、运营商、线路类型和地区。
Area code 781 at a glance
- Area code
- 781
- Location
- Massachusetts, United States
- Main cities
- Woburn, Burlington, Lexington, Malden, Arlington, Braintree
- Time zone
- Eastern (UTC−5)
- Local time now
- —
- In service since
- September 1, 1997
- Created from
- 617
- Overlay codes
- 339
- Codes split from it
- 339
- Local calls
- Dial 10 digits
- Number format
- (781) 555-0123
- From abroad
- +1 781 555 0123
Cities in area code 781
- Woburn
- Burlington
- Lexington
- Malden
- Arlington
- Braintree
- Dedham
- Medford
- Needham
- Norwood
Is a 781 call a scam?
An area code tells you where a number was first assigned, not where the caller is. Mobile numbers keep their area code when people move, and internet (VoIP) numbers can be picked in any area code — so a 781 number can be calling from anywhere.
Robocallers exploit that with "neighbor spoofing": showing a 781 number to people in Massachusetts because a local-looking call is more likely to be answered. If a 781 call claims to be your bank, the IRS or a delivery company, hang up and call the official number yourself.
About area code 781
781 entered service on September 1, 1997, when it was split from 617.
It is part of the 339/781 overlay: the codes cover the same area, and a new line there can be given a number in any of them. Two neighbours — or two phones in one household — can have different area codes. That is also why local calls need the full ten digits.
As the region grew, 339 was carved out of or added to 781.
Area codes
More area codes in Massachusetts
All Massachusetts area codes · Every North American area code · International country codes
常见问题
Area code 781 questions
Sources: NANPA NPA database (11/04/2026) and Google libphonenumber. Area codes show where a number was assigned, not where its owner is today.
Where is area code 781?
Area code 781 is in Massachusetts, United States. It covers Woburn, Burlington, Lexington, Malden, Arlington and Braintree.
What time zone is area code 781?
781 is in the Eastern (UTC−5) time zone, and observes daylight saving time.
What area codes overlay 781?
339 serves the same area as 781. Numbers in all of them are local to one another.
When did area code 781 start?
781 entered service on September 1, 1997, created from 617.
How do I find out who called me from 781?
Enter the full number in the lookup at the top of this page. The free check confirms whether the number is valid and shows its carrier, line type and region; a full report adds owner and public-web records where they are available.
Why am I getting calls from area code 781?
If you live in or near Massachusetts, they may be genuinely local — or robocalls spoofing a local-looking number. Unknown 781 callers who will not leave a message are best looked up before you call back.