Prefix overview
Phone numbers in prefix 447-644
This page covers the 447-644 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
447-644
RATE CENTER
ROYAL
CARRIER
ONVOY, LLC
IL
Prefix range
The prefix 447-644 includes numbers from 4476440000 to 4476449999.
This range is associated with the ROYAL rate center and was originally assigned to ONVOY, LLC.
Numbers in this prefix
20 numbers