Prefix overview
Phone numbers in prefix 220-666
This page covers the 220-666 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
220-666
RATE CENTER
BALTIMORE
CARRIER
ONVOY, LLC - OH
OH
Prefix range
The prefix 220-666 includes numbers from 2206660000 to 2206669999.
This range is associated with the BALTIMORE rate center and was originally assigned to ONVOY, LLC - OH.
Numbers in this prefix
20 numbers