Prefix overview
Phone numbers in prefix 520-477
This page covers the 520-477 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
520-477
RATE CENTER
TUCSON
CARRIER
MCIMETRO ACCESS TRANSMISSION SERVICES LLC
AZ
Prefix range
The prefix 520-477 includes numbers from 5204770000 to 5204779999.
This range is associated with the TUCSON rate center and was originally assigned to MCIMETRO ACCESS TRANSMISSION SERVICES LLC.
Numbers in this prefix
20 numbers