Prefix overview
Phone numbers in prefix 409-643
This page covers the 409-643 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
409-643
RATE CENTER
TXSCYMARQU
CARRIER
SOUTHWESTERN BELL
TX
Prefix range
The prefix 409-643 includes numbers from 4096430000 to 4096439999.
This range is associated with the TXSCYMARQU rate center and was originally assigned to SOUTHWESTERN BELL.
Numbers in this prefix
20 numbers