Prefix overview
Phone numbers in prefix 636-390
This page covers the 636-390 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
636-390
RATE CENTER
WASHINGTON
CARRIER
SOUTHWESTERN BELL
MO
Prefix range
The prefix 636-390 includes numbers from 6363900000 to 6363909999.
This range is associated with the WASHINGTON rate center and was originally assigned to SOUTHWESTERN BELL.
Numbers in this prefix
20 numbers