Prefix overview
Phone numbers in prefix 520-478
This page covers the 520-478 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
520-478
RATE CENTER
AJO
CARRIER
TELEPORT COMMUNICATIONS AMERICA, LLC - AZ
AZ
Prefix range
The prefix 520-478 includes numbers from 5204780000 to 5204789999.
This range is associated with the AJO rate center and was originally assigned to TELEPORT COMMUNICATIONS AMERICA, LLC - AZ.
Numbers in this prefix
20 numbers