Prefix overview
Phone numbers in prefix 830-538
This page covers the 830-538 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
830-538
RATE CENTER
CASTROVL
CARRIER
SOUTHWESTERN BELL
TX
Prefix range
The prefix 830-538 includes numbers from 8305380000 to 8305389999.
This range is associated with the CASTROVL rate center and was originally assigned to SOUTHWESTERN BELL.
Numbers in this prefix
20 numbers