Prefix overview
Phone numbers in prefix 231-520
This page covers the 231-520 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
231-520
RATE CENTER
CHARLEVOIX
CARRIER
123.NET, LLC
MI
Prefix range
The prefix 231-520 includes numbers from 2315200000 to 2315209999.
This range is associated with the CHARLEVOIX rate center and was originally assigned to 123.NET, LLC.
Numbers in this prefix
20 numbers