AT&T posted results for its first quarter of 2012 that showed it still being defined by the iPhone. The carrier sold 5.5 million smartphones and noted that it activated 4.3 million iPhones, roughly a quarter more than Verizon's 3.2 million. While AT&T sold 5.5 million smartphones, the actual ratio of new iPhone sales wouldn't be definite, as a small number of iPhone activations would have come from older phones being switched to new users.
