Greenwich, RI — rate center
- State
- Rhode Island
- Area codes
- 401
- Active prefixes
- 16
- Carriers
- 9
- Pooled prefixes
- 12
- LATA
- 130
- Metro area
- Providence-Warwick, RI-MA MSA
In NANP numbering, Greenwich, Rhode Island is a rate center — the anchor point for local numbers. It is reached through 401.
The rate center currently carries 16 working prefixes, held by 9 different carriers. Pooling applies to 12 of them — individual thousands-blocks may belong to different companies.
The rate center belongs to the Providence-Warwick, RI-MA Metropolitan Statistical Area. Routing-wise it sits in LATA 130.
A Greenwich prefix on caller ID is a starting point, not proof of origin — numbers travel with their owners and displays can be spoofed. Use official callback numbers for anything sensitive.
Prefixes anchored to Greenwich
| Prefix | Code holder | Pooled |
|---|---|---|
| 401-203 | OMNIPOINT MIAMI E LICENSE, LLC | Yes |
| 401-219 | OMNIPOINT MIAMI E LICENSE, LLC | Yes |
| 401-234 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Yes |
| 401-317 | TELNYX LLC | Yes |
| 401-336 | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | Yes |
| 401-398 | COMCAST IP PHONE, LLC | Yes |
| 401-402 | PAETEC ITEL, LLC | Yes |
| 401-471 | PAETEC ITEL, LLC | Yes |
| 401-541 | VERIZON NEW ENGLAND INC. | Yes |
| 401-542 | LEVEL 3 COMMUNICATIONS, LLC - RI | Yes |
| 401-557 | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | Yes |
| 401-558 | PAETEC ITEL, LLC | Yes |
| 401-715 | ONVOY, LLC - RI | No |
| 401-884 | VERIZON NEW ENGLAND INC. | No |
| 401-885 | VERIZON NEW ENGLAND INC. | No |
| 401-886 | VERIZON NEW ENGLAND INC. | No |
FAQ
What area code is Greenwich, RI?
Greenwich numbers use area code 401.
How many prefixes does Greenwich have?
16 active NXX prefixes are anchored to this rate center in NANPA records, held by 9 carriers.
Is a call from a Greenwich prefix really from Greenwich?
Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.