I’m pretty sure Sprint was never a serious consideration for Apple. AT&T is the second biggest network; it wouldn't make sense for Apple to pursue the 3rd or 4t

I’m pretty sure Sprint was never a serious consideration for Apple. AT&T is the second biggest network; it wouldn't make sense for Apple to pursue the 3rd or 4th player. Apple approached Verizon (the largest carrier in the US) before talking to AT&T, which agreed not having seen even a prototype of the iPhone. Apple and Verizon both needed this deal for different reasons. There are lots of people who covet the iPhone but absolutely won't switch to AT&T. That'll no longer be an issue.