Prefix overview
Phone numbers in prefix 331-431
This page covers the 331-431 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
331-431
RATE CENTER
AURORA
CARRIER
BANDWIDTH.COM CLEC, LLC - IL
IL
Prefix range
The prefix 331-431 includes numbers from 3314310000 to 3314319999.
This range is associated with the AURORA rate center and was originally assigned to BANDWIDTH.COM CLEC, LLC - IL.
Numbers in this prefix
20 numbers