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 this past quarter.

So it seems that Legere’s prediction of hitting 75 million subscribers a year from now seems unlikely to come true. On the other hand, T-Mobile is certainly on pace to overtake Sprint as America’s No. 3 wireless carrier over the next year, which in and of itself is pretty remarkable given that T-Mobile has long languished well behind as America’s No. 4 wireless carrier.

UPDATE: T-Mobile checks in to say that, although it’s not clear from the interview at Yahoo Tech, Legere was making a joke about reaching 75 million subscribers next year.

Prior to joining BGR as News Editor, Brad Reed spent five years covering the wireless industry for Network World. His first smartphone was a BlackBerry but he has since become a loyal Android user.