Prefix overview
Phone numbers in prefix 251-381
This page covers the 251-381 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
251-381
RATE CENTER
MOBILE
CARRIER
NUSO, LLC
AL
Prefix range
The prefix 251-381 includes numbers from 2513810000 to 2513819999.
This range is associated with the MOBILE rate center and was originally assigned to NUSO, LLC.
Numbers in this prefix
20 numbers