Prefix overview
Phone numbers in prefix 631-256
This page covers the 631-256 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
631-256
RATE CENTER
SAYVILLE
CARRIER
TC SYSTEMS, INC. - NY
NY
Prefix range
The prefix 631-256 includes numbers from 6312560000 to 6312569999.
This range is associated with the SAYVILLE rate center and was originally assigned to TC SYSTEMS, INC. - NY.
Numbers in this prefix
20 numbers