Prefix overview
Phone numbers in prefix 773-387
This page covers the 773-387 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
773-387
RATE CENTER
CHICGOZN10
CARRIER
T-MOBILE USA, INC.
IL
Prefix range
The prefix 773-387 includes numbers from 7733870000 to 7733879999.
This range is associated with the CHICGOZN10 rate center and was originally assigned to T-MOBILE USA, INC..
Numbers in this prefix
20 numbers