Verizon, AT&T, Sprint and T-Mobile say they have unlimited data plans, but here's the fine print
Verizon, AT&T, Sprint and T-Mobile all say they have unlimited data plans, but there's fine print you need to know about. There's a cap on your high speed data, no matter what plan you pay for. Verizon VZ , AT&T T , T-Mobile TMUS and Sprint S all offer "unlimited" data plans that suggest you can use as much high-speed data as you want each month.