Prefix overview
Phone numbers in prefix 432-639
This page covers the 432-639 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
432-639
RATE CENTER
IRAAN
CARRIER
SOUTHWESTERN BELL
TX
Prefix range
The prefix 432-639 includes numbers from 4326390000 to 4326399999.
This range is associated with the IRAAN rate center and was originally assigned to SOUTHWESTERN BELL.
Numbers in this prefix
20 numbers