Prefix overview
Phone numbers in prefix 660-592
This page covers the 660-592 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
660-592
RATE CENTER
POWERSVL
CARRIER
GRAND RIVER MUTUAL TEL CO
MO
Prefix range
The prefix 660-592 includes numbers from 6605920000 to 6605929999.
This range is associated with the POWERSVL rate center and was originally assigned to GRAND RIVER MUTUAL TEL CO.
Numbers in this prefix
20 numbers