Prefix overview
Phone numbers in prefix 909-389
This page covers the 909-389 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
909-389
RATE CENTER
MENTONE
CARRIER
FRONTIER CALIFORNIA INC.
CA
Prefix range
The prefix 909-389 includes numbers from 9093890000 to 9093899999.
This range is associated with the MENTONE rate center and was originally assigned to FRONTIER CALIFORNIA INC..
Numbers in this prefix
20 numbers