So you thought you had a lot of markets, you carriers you? Check out a bit of the ol' expansion at the hands of T-Mobile! Here we've got a list of 56 markets that T-Mobile will be expanding their HSPA+ 42 network into. That's T-Mobile's bigtime 4G network, incase you did not know, and with the sweetness already hitting 170 million Americans in 152 markets, one ocean to the other. This exceeds what T-Mobile is saying was their initial goal of reaching 150 million Americans with increased 4G speeds by the middle of this year and, keeping in mind that they've already reached 200 million Americans in more than 190 markets, we're gonna go ahead and say they're doing pretty well.