Prefix overview
Phone numbers in prefix 520-380
This page covers the 520-380 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
520-380
RATE CENTER
CASAGRANDE
CARRIER
T-MOBILE USA, INC.
AZ
Prefix range
The prefix 520-380 includes numbers from 5203800000 to 5203809999.
This range is associated with the CASAGRANDE rate center and was originally assigned to T-MOBILE USA, INC..
Numbers in this prefix
20 numbers