Prefix overview
Phone numbers in prefix 660-379
This page covers the 660-379 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
660-379
RATE CENTER
DOWNING
CARRIER
SOUTHWESTERN BELL
MO
Prefix range
The prefix 660-379 includes numbers from 6603790000 to 6603799999.
This range is associated with the DOWNING rate center and was originally assigned to SOUTHWESTERN BELL.
Numbers in this prefix
20 numbers