Prefix overview
Phone numbers in prefix 956-399
This page covers the 956-399 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
956-399
RATE CENTER
SAN BENITO
CARRIER
SOUTHWESTERN BELL
TX
Prefix range
The prefix 956-399 includes numbers from 9563990000 to 9563999999.
This range is associated with the SAN BENITO rate center and was originally assigned to SOUTHWESTERN BELL.
Numbers in this prefix
20 numbers