Prefix overview
Phone numbers in prefix 406-438
This page covers the 406-438 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
406-438
RATE CENTER
HELENA
CARRIER
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT
MT
Prefix range
The prefix 406-438 includes numbers from 4064380000 to 4064389999.
This range is associated with the HELENA rate center and was originally assigned to CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT.
Numbers in this prefix
20 numbers