Prefix overview
Phone numbers in prefix 231-308
This page covers the 231-308 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
231-308
RATE CENTER
CHARLEVOIX
CARRIER
TELNET WORLDWIDE, INC.
MI
Prefix range
The prefix 231-308 includes numbers from 2313080000 to 2313089999.
This range is associated with the CHARLEVOIX rate center and was originally assigned to TELNET WORLDWIDE, INC..
Numbers in this prefix
20 numbers