Prefix overview
Phone numbers in prefix 606-421
This page covers the 606-421 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
606-421
RATE CENTER
FEDSCREEK
CARRIER
ONVOY SPECTRUM, LLC
KY
Prefix range
The prefix 606-421 includes numbers from 6064210000 to 6064219999.
This range is associated with the FEDSCREEK rate center and was originally assigned to ONVOY SPECTRUM, LLC.
Numbers in this prefix
20 numbers