Prefix overview
Phone numbers in prefix 903-439
This page covers the 903-439 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
903-439
RATE CENTER
SULPHURSPG
CARRIER
FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS
TX
Prefix range
The prefix 903-439 includes numbers from 9034390000 to 9034399999.
This range is associated with the SULPHURSPG rate center and was originally assigned to FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS.
Numbers in this prefix
20 numbers