Prefix overview
Phone numbers in prefix 309-355
This page covers the 309-355 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
309-355
RATE CENTER
GRIDLEY
CARRIER
MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL
IL
Prefix range
The prefix 309-355 includes numbers from 3093550000 to 3093559999.
This range is associated with the GRIDLEY rate center and was originally assigned to MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL.
Numbers in this prefix
20 numbers