Prefix overview
Phone numbers in prefix 423-399
This page covers the 423-399 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
423-399
RATE CENTER
SULIVNGDNS
CARRIER
BANDWIDTH.COM CLEC, LLC - TN
TN
Prefix range
The prefix 423-399 includes numbers from 4233990000 to 4233999999.
This range is associated with the SULIVNGDNS rate center and was originally assigned to BANDWIDTH.COM CLEC, LLC - TN.
Numbers in this prefix
20 numbers