- City / exchange
- Cambridge
- Province / state
- Massachusetts
- Country
- United States
- Carrier
- Cellco Partnership dba Verizon Wireless - Ma
- Line type
- Likely mobile
- OCN
- 6387
- Status
- In Service
- Assigned
- 07/22/2015
- Number pooling
- Yes (block shared between carriers)
857-331 phone numbers
Cambridge, Massachusetts, United States · Cellco Partnership dba Verizon Wireless - Ma
Reported numbers in 857-331
No numbers in this block have been reported by visitors yet.
What does the 857-331 prefix tell you?
Every North American number is area code + prefix + line. The prefix 857-331 was assigned to Cellco Partnership dba Verizon Wireless - Ma on 07/22/2015 for the Cambridge exchange. A call from this block usually originates from a Cellco Partnership dba Verizon Wireless - Ma customer in or near Cambridge, but caller ID can be spoofed to show any number.