The state says that the broadband provider had failed to expand its network quickly enough as it was agreed upon for the Charter-Time Warner Cable merger.
Just like Comcast's own Xfinity Mobile, the service is offer on top of Verizon's LTE network and a mesh of free Wi-Fi hotspots across the nation.
The map shows off the spectrum holdings the two would have if they combined. But it doesn't reflect the towers that already exist.
T-Mobile is looking to quickly capitalize on wide 600 MHz spectrum it spent nearly $8 billion on fairly recently, with a big deployment planned this year.
If one cable company wanted to acquire a wireless operator, say T-Mobile, it would have to get permission from the other.
AT&T has been working on a way to not have to install fiber or set up towers to support its network. The solution? Plastic antennas on power lines.