Prefix overview
Phone numbers in prefix 251-397
This page covers the 251-397 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
251-397
RATE CENTER
DAUPHIN IS
CARRIER
ONVOY, LLC - AL
AL
Prefix range
The prefix 251-397 includes numbers from 2513970000 to 2513979999.
This range is associated with the DAUPHIN IS rate center and was originally assigned to ONVOY, LLC - AL.
Numbers in this prefix
20 numbers