Prefix overview
Phone numbers in prefix 430-543
This page covers the 430-543 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
430-543
RATE CENTER
SIMMS
CARRIER
ONVOY, LLC - TX
TX
Prefix range
The prefix 430-543 includes numbers from 4305430000 to 4305439999.
This range is associated with the SIMMS rate center and was originally assigned to ONVOY, LLC - TX.
Numbers in this prefix
20 numbers