Prefix overview
Phone numbers in prefix 520-381
This page covers the 520-381 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
520-381
RATE CENTER
CASAGRANDE
CARRIER
ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM
AZ
Prefix range
The prefix 520-381 includes numbers from 5203810000 to 5203819999.
This range is associated with the CASAGRANDE rate center and was originally assigned to ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM.
Numbers in this prefix
20 numbers