(857) 299
Prefix in BELMONT, Massachusetts
Prefix Details
| Area Code | 857 |
| Prefix | 299 |
| Full Number Pattern | (857) 299-XXXX |
| Rate Center | BELMONT |
| State | Massachusetts |
| Operating Company | ONVOY, LLC - MA |
| Time Zone | Eastern (ET, UTC-5) |
About the (857) 299 Prefix
The (857) 299 prefix is assigned to ONVOY, LLC - MA and serves the BELMONT rate center in Massachusetts. Phone numbers with this prefix are in the Eastern Time Zone and are part of area code 857 which covers Boston and surrounding areas.