Prefix overview
Phone numbers in prefix 406-478
This page covers the 406-478 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
406-478
RATE CENTER
SIDNEY
CARRIER
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT
MT
Prefix range
The prefix 406-478 includes numbers from 4064780000 to 4064789999.
This range is associated with the SIDNEY rate center and was originally assigned to CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT.
Numbers in this prefix
20 numbers