Prefix overview
Phone numbers in prefix 401-310
This page covers the 401-310 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
401-310
RATE CENTER
WARREN
CARRIER
BANDWIDTH.COM CLEC, LLC - RI
RI
Prefix range
The prefix 401-310 includes numbers from 4013100000 to 4013109999.
This range is associated with the WARREN rate center and was originally assigned to BANDWIDTH.COM CLEC, LLC - RI.
Numbers in this prefix
20 numbers