Prefix overview
Phone numbers in prefix 406-432
This page covers the 406-432 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
406-432
RATE CENTER
DEVON
CARRIER
NORTHERN TEL. COOP., INC.
MT
Prefix range
The prefix 406-432 includes numbers from 4064320000 to 4064329999.
This range is associated with the DEVON rate center and was originally assigned to NORTHERN TEL. COOP., INC..
Numbers in this prefix
20 numbers