About Area Code 857
Area code 857 serves Massachusetts, covering major cities including Boston. Operating in the Eastern Time (ET), this code was established in 2001.
| State | Time Zone | Cities |
|---|---|---|
| Massachusetts | Eastern Time (ET) | Boston |
Active Area Code
857
Massachusetts
Eastern Time (ET)
Est. 2001
PRIMARY
Location
Massachusetts
Boston
ACTIVE
Coverage
1 Cities
Since 2001
Beware of Spam Calls
Scammers frequently use 857 numbers. Always verify unknown callers before sharing personal information.
Protect Yourself NowCommon Questions
Where is 857?
Located in Massachusetts, serving Boston and surrounding areas.
What time zone?
Operates in Eastern Time (ET).
When established?
Area code 857 was introduced in 2001.
Used for spam?
Can be used by legitimate and fraudulent callers. Always verify unknown numbers.