Belmont, MA Area Codes
Belmont is served by area codes 617 and 857. It is in Massachusetts, Middlesex County. About 27,175 people live in its 1 ZIP codes.
| Field | Value |
|---|---|
| Area code(s) | 617, 857 |
| State / province | Massachusetts |
| County | Middlesex County |
| Population | 27,175 |
| ZIP codes | 1 |
| Time zone | Eastern |
| Coordinates | 42.3953, -71.1803 |
What area code is Belmont in?
ZIP codes in the code footprint
Nearby towns and their area codes
Watertown 617, 857Arlington 339, 781Newton 617, 857Waltham 339, 617, 781Newtonville 617, 857Brighton 617, 857Allston 617, 857Somerville 617, 857
How to dial
Dial 617 + 7 digits for a number in Belmont, or +1 617 ... from abroad. Ten-digit dialling is required everywhere in the North American Numbering Plan.