Prefix overview
Phone numbers in prefix 231-477
This page covers the 231-477 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
231-477
RATE CENTER
BRETHREN
CARRIER
KALEVA TEL. CO.
MI
Prefix range
The prefix 231-477 includes numbers from 2314770000 to 2314779999.
This range is associated with the BRETHREN rate center and was originally assigned to KALEVA TEL. CO..
Numbers in this prefix
20 numbers