Prefix overview
Phone numbers in prefix 972-377
This page covers the 972-377 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
972-377
RATE CENTER
FRISCO
CARRIER
SOUTHWESTERN BELL
TX
Prefix range
The prefix 972-377 includes numbers from 9723770000 to 9723779999.
This range is associated with the FRISCO rate center and was originally assigned to SOUTHWESTERN BELL.
Numbers in this prefix
20 numbers