Prefix overview
Phone numbers in prefix 903-378
This page covers the 903-378 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
903-378
RATE CENTER
HONEYGROVE
CARRIER
SOUTHWESTERN BELL
TX
Prefix range
The prefix 903-378 includes numbers from 9033780000 to 9033789999.
This range is associated with the HONEYGROVE rate center and was originally assigned to SOUTHWESTERN BELL.
Numbers in this prefix
20 numbers