Prefix overview
Phone numbers in prefix 448-203
This page covers the 448-203 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
448-203
RATE CENTER
MADISON
CARRIER
TELNYX LLC
FL
Prefix range
The prefix 448-203 includes numbers from 4482030000 to 4482039999.
This range is associated with the MADISON rate center and was originally assigned to TELNYX LLC.
Numbers in this prefix
20 numbers