Prefix overview
Phone numbers in prefix 313-325
This page covers the 313-325 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
313-325
RATE CENTER
DETROITZN4
CARRIER
AMERICAN MESSAGING SERVICES, LLC
MI
Prefix range
The prefix 313-325 includes numbers from 3133250000 to 3133259999.
This range is associated with the DETROITZN4 rate center and was originally assigned to AMERICAN MESSAGING SERVICES, LLC.
Numbers in this prefix
20 numbers