Prefix overview
Phone numbers in prefix 406-427
This page covers the 406-427 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
406-427
RATE CENTER
SO BROADUS
CARRIER
RANGE TEL COOP INC
MT
Prefix range
The prefix 406-427 includes numbers from 4064270000 to 4064279999.
This range is associated with the SO BROADUS rate center and was originally assigned to RANGE TEL COOP INC.
Numbers in this prefix
20 numbers