Prefix overview
Phone numbers in prefix 618-366
This page covers the 618-366 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
618-366
RATE CENTER
KASKASKIA
CARRIER
SOUTHWESTERN BELL
IL
Prefix range
The prefix 618-366 includes numbers from 6183660000 to 6183669999.
This range is associated with the KASKASKIA rate center and was originally assigned to SOUTHWESTERN BELL.
Numbers in this prefix
20 numbers