Prefix overview
Phone numbers in prefix 231-427
This page covers the 231-427 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
231-427
RATE CENTER
MACKINAWCY
CARRIER
AT&T ENTERPRISES, LLC
MI
Prefix range
The prefix 231-427 includes numbers from 2314270000 to 2314279999.
This range is associated with the MACKINAWCY rate center and was originally assigned to AT&T ENTERPRISES, LLC.
Numbers in this prefix
20 numbers