Block Island, RI — rate center
- State
- Rhode Island
- Area codes
- 401
- Active prefixes
- 4
- Carriers
- 3
- Pooled prefixes
- 3
- LATA
- 130
- Metro area
- Providence-Warwick, RI-MA MSA
The Block Island rate center (Rhode Island) anchors 4 active prefixes under area code 401. Rate centers, not city limits, are what phone numbers are legally tied to.
4 central-office prefixes are currently anchored to this rate center across 3 carriers. 3 prefixes participate in thousands-block pooling, so blocks of 1,000 numbers are shared between carriers.
The rate center belongs to the Providence-Warwick, RI-MA Metropolitan Statistical Area. Routing-wise it sits in LATA 130.
With only 4 prefixes, Block Island sits at the small end of Rhode Island's rate centers — a handful of carrier blocks cover the whole locality, and a number from here is a fairly strong locality signal (before porting is considered).
Treat this data as geography of the number, not of the caller: porting, VoIP and caller-ID spoofing all detach the two. When a call matters, hang up and call back through an official number.
Prefixes anchored to Block Island
| Prefix | Code holder | Pooled |
|---|---|---|
| 401-210 | ONVOY, LLC - RI | No |
| 401-466 | VERIZON NEW ENGLAND INC. | Yes |
| 401-800 | ONVOY, LLC - RI | Yes |
| 401-859 | LEVEL 3 COMMUNICATIONS, LLC - RI | Yes |
FAQ
What area code is Block Island, RI?
Block Island numbers use area code 401.
How many prefixes does Block Island have?
4 active NXX prefixes are anchored to this rate center in NANPA records, held by 3 carriers.
Is a call from a Block Island prefix really from Block Island?
Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.