9to5Mac

The new Apple Upgrade program has a key piece of fine print: “If you’re leasing an iPhone, you’ll need to connect to AT&T, T-Mobile, or Verizon when you enroll.”
In a new post today, John Gruber at Daring Fireball has a likely explanation for this requirement.

Here’s why Apple Upgrade requires AT&T, T-Mobile, or Verizon for iPhone

Mashable

How to get free iPhone. Get the Apple iPhone 17 for free when you sign up for T-Mobile.