Prefix overview
Phone numbers in prefix 401-231
This page covers the 401-231 prefix in the United States. It shows where numbers come from, which carrier is linked to the range, and how this block is structured.
If you are looking for a specific number, you can continue to its dedicated phone page. Otherwise, this page helps you understand the broader number block behind it.
PREFIX
401-231
RATE CENTER
CENTREDALE
CARRIER
VERIZON NEW ENGLAND INC.
RI
Prefix range
The prefix 401-231 includes numbers from 4012310000 to 4012319999.
This range is associated with the CENTREDALE rate center and was originally assigned to VERIZON NEW ENGLAND INC..
Numbers in this prefix
20 numbers