Prefix overview
Phone numbers in prefix 928-423
This page covers the 928-423 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
928-423
RATE CENTER
FLAGSTAFF
CARRIER
LEVEL 3 COMMUNICATIONS, LLC - AZ
AZ
Prefix range
The prefix 928-423 includes numbers from 9284230000 to 9284239999.
This range is associated with the FLAGSTAFF rate center and was originally assigned to LEVEL 3 COMMUNICATIONS, LLC - AZ.
Numbers in this prefix
20 numbers