It’s safe to say that T-Mobile CEO is feeling pretty cocky after his carrier reported adding 2.4 million net new customers last quarter alone. In an interview with Yahoo Tech, Legere predicts that T-Mobile’s momentum will only grow over the next year and he thinks that the “Uncarrier” will have 75 million subscribers by this time next year. To get a sense of just how big this would be, consider that at the end of last quarter, T-Mobile had 49 million total subscribers. This means that to reach 75 million subscribers by this time next year, T-Mobile will have to add a whopping 6.5 million subscribers per quarter, or more than two-and-a-half times the number of subscribers that T-Mobile reported