Prefix overview
Phone numbers in prefix 507-256
This page covers the 507-256 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
507-256
RATE CENTER
CLARKS GRV
CARRIER
CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN
MN
Prefix range
The prefix 507-256 includes numbers from 5072560000 to 5072569999.
This range is associated with the CLARKS GRV rate center and was originally assigned to CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN.
Numbers in this prefix
20 numbers