Prefix overview
Phone numbers in prefix 631-255
This page covers the 631-255 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
631-255
RATE CENTER
RIVERHEAD
CARRIER
NEW CINGULAR WIRELESS PCS, LLC - DC
NY
Prefix range
The prefix 631-255 includes numbers from 6312550000 to 6312559999.
This range is associated with the RIVERHEAD rate center and was originally assigned to NEW CINGULAR WIRELESS PCS, LLC - DC.
Numbers in this prefix
20 numbers