Prefix overview
Phone numbers in prefix 409-621
This page covers the 409-621 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
409-621
RATE CENTER
GALVESTON
CARRIER
SOUTHWESTERN BELL
TX
Prefix range
The prefix 409-621 includes numbers from 4096210000 to 4096219999.
This range is associated with the GALVESTON rate center and was originally assigned to SOUTHWESTERN BELL.
Numbers in this prefix
20 numbers