Prefix overview
Phone numbers in prefix 779-400
This page covers the 779-400 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
779-400
RATE CENTER
DE KALB
CARRIER
YMAX COMMUNICATIONS CORP. - IL
IL
Prefix range
The prefix 779-400 includes numbers from 7794000000 to 7794009999.
This range is associated with the DE KALB rate center and was originally assigned to YMAX COMMUNICATIONS CORP. - IL.
Numbers in this prefix
20 numbers