Prefix overview
Phone numbers in prefix 773-344
This page covers the 773-344 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
773-344
RATE CENTER
CHICGOZN10
CARRIER
MCIMETRO ACCESS TRANSMISSION SERVICES LLC
IL
Prefix range
The prefix 773-344 includes numbers from 7733440000 to 7733449999.
This range is associated with the CHICGOZN10 rate center and was originally assigned to MCIMETRO ACCESS TRANSMISSION SERVICES LLC.
Numbers in this prefix
20 numbers