State
Area Code 781
Waltham, Lexington, Burlington, Massachusetts
Local time now
…
Time zone
Eastern
Main cities
Waltham, Lexington, Burlington, Lynn, Woburn, Dedham
Overlays
In service since
1997
When you can make sales calls to 781 numbers
| Monday – Friday | 8 AM – 8 PM |
| Saturday | 8 AM – 8 PM |
| Sunday | 8 AM – 8 PM |
In the called person's local time. Guidance, not legal advice.
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Other area codes in Massachusetts
Questions about area code 781
- Where is area code 781?
- Area code 781 is in Massachusetts, covering Waltham, Lexington, Burlington, Lynn.
- What time zone is area code 781?
- Eastern time.
- When can telemarketers call a 781 number?
- Federal rules allow sales calls from 8 AM to 9 PM local time, and Massachusetts has stricter hours shown on this page.
- Is 781 a toll-free number?
- No. 781 is a regular area code for Massachusetts. Toll-free codes are 800, 833, 844, 855, 866, 877 and 888.