iPad 1 A1337
iPad 2 A1396
iPad 3rd Gen w/ Retina display A1403
A1430
iPad 4th Gen w/ Retina display A1459
A1460
iPad Air A1475
iPad Air 2
iPad mini A1454
A1455
iPad mini 2
(formerly called the iPad mini with Retina display) A1490
If you're having trouble activating, here's what worked for me on an iPad 2:
1. With wi-fi on, open http://tmobile.com/connectme in your browser. (This redirected to https://mim.t-mobile.com)
2. Turn off wi-fi.
3. Refresh page over cellular data. A new page with a Connect Me button appears (or something similar). Click that.
4. Following page lists data plan options, including "Plain and Simple - Free Data for Life" -- the 200MB free monthly data plan.
5. Give an email address and password to create your account. No credit card needed.
If you're having trouble activating, here's what worked for me on an iPad 2:
1. With wi-fi on, open http://tmobile.com/connectme in your browser. (This redirected to https://mim.t-mobile.com)
2. Turn off wi-fi.
3. Refresh page over cellular data. A new page with a Connect Me button appears (or something similar). Click that.
4. Following page lists data plan options, including "Plain and Simple - Free Data for Life" -- the 200MB free monthly data plan.
5. Give an email address and password to create your account. No credit card needed.