US carriers

Sprint recorded approximately 1.5 million iPhone sales in the third quarter with 40 percent representing new customers. 

Notably, the 4.7 million iPhone activations represented roughly 77% of AT&T's total smartphone sales of 6.1 million during the quarter, showing that Apple continues to dominate AT&T's smartphone customer base. And with smartphones overall rising to account for 81% of AT&T's sales on a postpaid basis, the iPhone represented 62% of AT&T's sales of all phones (smartphones and feature phones) to those customers.

In a conference call following the earnings release, Verizon revealed that it activated 3.1 million iPhones during the quarter, representing approximately 46% of its total smartphone activations of 6.8 million. The iPhone activation number was up from 2.7 million in the previous quarter that saw Apple garnering a similar 45% share of Verizon's smartphone activations.