Prefix overview
Phone numbers in prefix 331-788
This page covers the 331-788 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
331-788
RATE CENTER
GENEVA
CARRIER
FRACTEL, LLC
IL
Prefix range
The prefix 331-788 includes numbers from 3317880000 to 3317889999.
This range is associated with the GENEVA rate center and was originally assigned to FRACTEL, LLC.
Numbers in this prefix
20 numbers