Prefix overview
Phone numbers in prefix 406-420
This page covers the 406-420 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
406-420
RATE CENTER
BIGFORK
CARRIER
CHARTER IP ENABLED SERVICES, LLC
MT
Prefix range
The prefix 406-420 includes numbers from 4064200000 to 4064209999.
This range is associated with the BIGFORK rate center and was originally assigned to CHARTER IP ENABLED SERVICES, LLC.
Numbers in this prefix
20 numbers