Prefix overview
Phone numbers in prefix 628-477
This page covers the 628-477 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
628-477
RATE CENTER
MILLVALLEY
CARRIER
FRACTEL, LLC
CA
Prefix range
The prefix 628-477 includes numbers from 6284770000 to 6284779999.
This range is associated with the MILLVALLEY rate center and was originally assigned to FRACTEL, LLC.
Numbers in this prefix
20 numbers