Prefix overview
Phone numbers in prefix 573-257
This page covers the 573-257 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
573-257
RATE CENTER
JEFFERSNCY
CARRIER
ONVOY SPECTRUM, LLC
MO
Prefix range
The prefix 573-257 includes numbers from 5732570000 to 5732579999.
This range is associated with the JEFFERSNCY rate center and was originally assigned to ONVOY SPECTRUM, LLC.
Numbers in this prefix
20 numbers