Prefix overview
Phone numbers in prefix 309-421
This page covers the 309-421 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
309-421
RATE CENTER
MACOMB
CARRIER
COMCAST IP PHONE, LLC
IL
Prefix range
The prefix 309-421 includes numbers from 3094210000 to 3094219999.
This range is associated with the MACOMB rate center and was originally assigned to COMCAST IP PHONE, LLC.
Numbers in this prefix
20 numbers