Prefix overview
Phone numbers in prefix 563-666
This page covers the 563-666 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
563-666
RATE CENTER
WALCOTT
CARRIER
ONVOY, LLC - IA
IA
Prefix range
The prefix 563-666 includes numbers from 5636660000 to 5636669999.
This range is associated with the WALCOTT rate center and was originally assigned to ONVOY, LLC - IA.
Numbers in this prefix
20 numbers