Prefix overview
Phone numbers in prefix 631-388
This page covers the 631-388 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
631-388
RATE CENTER
BRENTWOOD
CARRIER
CSC VOICE, LLC
NY
Prefix range
The prefix 631-388 includes numbers from 6313880000 to 6313889999.
This range is associated with the BRENTWOOD rate center and was originally assigned to CSC VOICE, LLC.
Numbers in this prefix
20 numbers