Prefix overview
Phone numbers in prefix 660-552
This page covers the 660-552 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
660-552
RATE CENTER
KING CITY
CARRIER
LEVEL 3 COMMUNICATIONS, LLC - MO
MO
Prefix range
The prefix 660-552 includes numbers from 6605520000 to 6605529999.
This range is associated with the KING CITY rate center and was originally assigned to LEVEL 3 COMMUNICATIONS, LLC - MO.
Numbers in this prefix
20 numbers