IIRC, the very cheapest one or two don't get any. Then you get into the ones with 4/year and I think it's only the top tier that gets unlimited. I think this is a pretty recent change, though. In the past I'm pretty sure all plans had an unlimited # (ironically, when a full flight pass was $20+, now it's $8). I just sold my business that paid for all me and my family phones and just had to go open another account and am essentially paying out of pocket now so I went with a mid-tier plan. Quickly crunching the #s I just don't fly enough to justify the top tier. I can buy A LOT of $8 wifi passes for the extra price jump. As an aside, T-Mobile continues to be the best value in phones IMO. I have 5 phones (me, wife + 3 kids) and with auto-pay it's around $175/mo. There are limits on data but I think it's 100GB which I'll never need... and if my kids hit that it's time to put the phone down and get outside anyway.