Prefix overview
Phone numbers in prefix 743-231
This page covers the 743-231 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
743-231
RATE CENTER
MADISON
CARRIER
ONVOY SPECTRUM, LLC
NC
Prefix range
The prefix 743-231 includes numbers from 7432310000 to 7432319999.
This range is associated with the MADISON rate center and was originally assigned to ONVOY SPECTRUM, LLC.
Numbers in this prefix
20 numbers