Prefix overview
Phone numbers in prefix 406-309
This page covers the 406-309 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
406-309
RATE CENTER
KALISPELL
CARRIER
CHARTER IP ENABLED SERVICES, LLC
MT
Prefix range
The prefix 406-309 includes numbers from 4063090000 to 4063099999.
This range is associated with the KALISPELL rate center and was originally assigned to CHARTER IP ENABLED SERVICES, LLC.
Numbers in this prefix
20 numbers