Prefix overview
Phone numbers in prefix 773-231
This page covers the 773-231 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
773-231
RATE CENTER
CHICGOZN07
CARRIER
LEVEL 3 COMMUNICATIONS, LLC - IL
IL
Prefix range
The prefix 773-231 includes numbers from 7732310000 to 7732319999.
This range is associated with the CHICGOZN07 rate center and was originally assigned to LEVEL 3 COMMUNICATIONS, LLC - IL.
Numbers in this prefix
20 numbers