Prefix overview
Phone numbers in prefix 309-388
This page covers the 309-388 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
309-388
RATE CENTER
KNOXVILLE
CARRIER
COMCAST IP PHONE, LLC
IL
Prefix range
The prefix 309-388 includes numbers from 3093880000 to 3093889999.
This range is associated with the KNOXVILLE rate center and was originally assigned to COMCAST IP PHONE, LLC.
Numbers in this prefix
20 numbers