Prefix overview
Phone numbers in prefix 248-399
This page covers the 248-399 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
248-399
RATE CENTER
ROYAL OAK
CARRIER
MICHIGAN BELL TEL CO
MI
Prefix range
The prefix 248-399 includes numbers from 2483990000 to 2483999999.
This range is associated with the ROYAL OAK rate center and was originally assigned to MICHIGAN BELL TEL CO.
Numbers in this prefix
20 numbers