Prefix overview
Phone numbers in prefix 406-377
This page covers the 406-377 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
406-377
RATE CENTER
GLENDIVE
CARRIER
MID-RIVERS TELEPHONE COOPERATIVE, INC.
MT
Prefix range
The prefix 406-377 includes numbers from 4063770000 to 4063779999.
This range is associated with the GLENDIVE rate center and was originally assigned to MID-RIVERS TELEPHONE COOPERATIVE, INC..
Numbers in this prefix
20 numbers