Prefix overview
Phone numbers in prefix 256-406
This page covers the 256-406 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
256-406
RATE CENTER
FORT PAYNE
CARRIER
ONVOY, LLC - AL
AL
Prefix range
The prefix 256-406 includes numbers from 2564060000 to 2564069999.
This range is associated with the FORT PAYNE rate center and was originally assigned to ONVOY, LLC - AL.
Numbers in this prefix
20 numbers