Prefix overview
Phone numbers in prefix 830-278
This page covers the 830-278 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
830-278
RATE CENTER
UVALDE
CARRIER
SOUTHWESTERN BELL
TX
Prefix range
The prefix 830-278 includes numbers from 8302780000 to 8302789999.
This range is associated with the UVALDE rate center and was originally assigned to SOUTHWESTERN BELL.
Numbers in this prefix
20 numbers