Carrier Grandfathered AT&T Unlimited plan iPhone 7 questions

You could try calling AT&T

 

I also have a single line, grandfathered UDP. From my understanding, AT&T would let us keep our plans, the method on buying the next iPhone would either be outright, or on a Next plan; no more subsidized prices.

I'm thinking of switching to Tmobile's new unlimited One plan, since it's cheaper than AT&T's grandfathered plan, by then I'll just do the installment plan.

 

You can just upgrade using the NEXT plans or buying the phone outright. AT&T said it would not change my current grandfathered unlimited data plan.

 

I went to the AT&T store on Saturday and talked to a rep who seemed very knowledgeable. He said that I could order through AT&T Next, Apple Upgrade, or buy the phone at full price. As a test, I went through the process to buy a new iPhone on Apple's store app: after I selected a phone for my line, I received a message stating that I would be required to select a new plan (EEK!), but when I proceeded to the next page to select a plan, my unlimited (current) plan was preselected, and I was able to continue with the order with my unlimited data plan. Of course, I didn't complete the order, but it looks like keeping the UDP is good to go.

 

This is very good news, thanks!

 

Anyone have any updates on this? Thinking about going the Apple route as well, but may have to go into AT&T since my phone (6s) is still under contract. I usually give my phone to my girlfriend and we sell the 2 year old model (6).

 

I just purchased from Apple the 6s full price and kept my grandfathered plan--coming from the 6 which was still under contract. The phone is also unlocked as confirmed by Apple rep after I set up the phone.