Prefix overview
Phone numbers in prefix 251-374
This page covers the 251-374 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
251-374
RATE CENTER
MOBILE
CARRIER
ONVOY SPECTRUM, LLC
AL
Prefix range
The prefix 251-374 includes numbers from 2513740000 to 2513749999.
This range is associated with the MOBILE rate center and was originally assigned to ONVOY SPECTRUM, LLC.
Numbers in this prefix
20 numbers