Prefix overview
Phone numbers in prefix 256-344
This page covers the 256-344 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
256-344
RATE CENTER
ATTALLA
CARRIER
TELEPORT COMMUNICATIONS AMERICA, LLC - AL
AL
Prefix range
The prefix 256-344 includes numbers from 2563440000 to 2563449999.
This range is associated with the ATTALLA rate center and was originally assigned to TELEPORT COMMUNICATIONS AMERICA, LLC - AL.
Numbers in this prefix
20 numbers