We know that digital out of home ads, delightfully called DOOH, are hot.  So hot, in fact, that T-Mobile just bought a Octopus Interactive, which has an ad network of screens inside rideshare vehicles.  The screens will be replaced by T-Mobile devices, extending T-Mobile’s Magenta Audience Network of more than 100 million mobile customers.

T-Mobile will allow advertisers to target more than 20,000 screens in 11,000 store locations. That’s a lot of screens, but how much foot traffic does the average T-Mobile store get? It’s also linking up with streaming media company Plex as a CTV partner.