Area Code 351 at a Glance
| Area code | 351 |
| Region | Massachusetts |
| Country | United States |
| Primary timezone | America/New_York |
| Dialing format | +1 (351) NXX-XXXX |
Frequently Asked Questions
Where is area code 351?
Area code 351 serves Massachusetts, United States.
Who is calling me from area code 351?
A call from area code 351 most likely originates from Massachusetts, but caller ID can be spoofed. If an unknown caller asks for personal or payment information, hang up and call the organization back on its official number.
How do I dial a 351 number?
Within North America: dial 1-351 followed by the 7-digit number. From abroad: your international prefix (like 00 or +), then 1 351 and the number.