Prefix overview
Phone numbers in prefix 779-666
This page covers the 779-666 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
779-666
RATE CENTER
ROCKFORD
CARRIER
ONVOY, LLC
IL
Prefix range
The prefix 779-666 includes numbers from 7796660000 to 7796669999.
This range is associated with the ROCKFORD rate center and was originally assigned to ONVOY, LLC.
Numbers in this prefix
20 numbers