Prefix overview
Phone numbers in prefix 779-231
This page covers the 779-231 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
779-231
RATE CENTER
JOLIET
CARRIER
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL
IL
Prefix range
The prefix 779-231 includes numbers from 7792310000 to 7792319999.
This range is associated with the JOLIET rate center and was originally assigned to MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL.
Numbers in this prefix
20 numbers