Prefix overview
Phone numbers in prefix 773-244
This page covers the 773-244 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
773-244
RATE CENTER
CHICGOZN04
CARRIER
ILLINOIS BELL TEL CO
IL
Prefix range
The prefix 773-244 includes numbers from 7732440000 to 7732449999.
This range is associated with the CHICGOZN04 rate center and was originally assigned to ILLINOIS BELL TEL CO.
Numbers in this prefix
20 numbers