- City / exchange
- Greenwich
- Province / state
- Rhode Island
- Country
- United States
- Carrier
- Teleport Communications America, LLC - CA
- Line type
- Landline or business line
- OCN
- 7351
- Status
- In Service
- Assigned
- 07/01/2025
- Number pooling
- Yes (block shared between carriers)
401-557 phone numbers
Greenwich, Rhode Island, United States · Teleport Communications America, LLC - CA
Reported numbers in 401-557
No numbers in this block have been reported by visitors yet.
What does the 401-557 prefix tell you?
Every North American number is area code + prefix + line. The prefix 401-557 was assigned to Teleport Communications America, LLC - CA on 07/01/2025 for the Greenwich exchange. A call from this block usually originates from a Teleport Communications America, LLC - CA customer in or near Greenwich, but caller ID can be spoofed to show any number.