Prefix overview
Phone numbers in prefix 773-303
This page covers the 773-303 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
773-303
RATE CENTER
CHICGOZN02
CARRIER
MCIMETRO ACCESS TRANSMISSION SERVICES LLC
IL
Prefix range
The prefix 773-303 includes numbers from 7733030000 to 7733039999.
This range is associated with the CHICGOZN02 rate center and was originally assigned to MCIMETRO ACCESS TRANSMISSION SERVICES LLC.
Numbers in this prefix
20 numbers