Prefix overview
Phone numbers in prefix 720-400
This page covers the 720-400 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
720-400
RATE CENTER
DENVER
CARRIER
T-MOBILE USA, INC.
CO
Prefix range
The prefix 720-400 includes numbers from 7204000000 to 7204009999.
This range is associated with the DENVER rate center and was originally assigned to T-MOBILE USA, INC..
Numbers in this prefix
20 numbers