Prefix overview
Phone numbers in prefix 406-321
This page covers the 406-321 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
406-321
RATE CENTER
COLUMBUS
CARRIER
NEW CINGULAR WIRELESS PCS, LLC
MT
Prefix range
The prefix 406-321 includes numbers from 4063210000 to 4063219999.
This range is associated with the COLUMBUS rate center and was originally assigned to NEW CINGULAR WIRELESS PCS, LLC.
Numbers in this prefix
20 numbers