Jamestown, RI — rate center

NANPA rate center & CO code data, current as of July 28, 2026.

State
Rhode Island
Area codes
401
Active prefixes
5
Carriers
4
Pooled prefixes
4
LATA
130
Metro area
Providence-Warwick, RI-MA MSA

In NANP numbering, Jamestown, Rhode Island is a rate center — the anchor point for local numbers. It is reached through 401.

5 central-office prefixes are currently anchored to this rate center, held by 4 different carriers. Pooling applies to 4 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.

Jamestown is a small rate center: 5 prefixes across 4 carriers serve it. Small localities like this often keep the same blocks for decades, so the prefix-to-place mapping tends to be stable.

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 Jamestown

Prefixes anchored to the Jamestown rate center
PrefixCode holderPooled
401-423 VERIZON NEW ENGLAND INC. Yes
401-560 COMCAST IP PHONE, LLC Yes
401-566 LEVEL 3 COMMUNICATIONS, LLC - RI Yes
401-684 LEVEL 3 COMMUNICATIONS, LLC - RI Yes
401-756 ONVOY, LLC - RI No

FAQ

What area code is Jamestown, RI?

Jamestown numbers use area code 401.

How many prefixes does Jamestown have?

5 active NXX prefixes are anchored to this rate center in NANPA records, held by 4 carriers.

Is a call from a Jamestown prefix really from Jamestown?

Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.