Prefix overview
Phone numbers in prefix 447-557
This page covers the 447-557 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
447-557
RATE CENTER
SIDELL
CARRIER
ONVOY, LLC
IL
Prefix range
The prefix 447-557 includes numbers from 4475570000 to 4475579999.
This range is associated with the SIDELL rate center and was originally assigned to ONVOY, LLC.
Numbers in this prefix
20 numbers