AT&T's bandwidth caps: a bad deal for whom? The blog Broadband Reports broke some bad news over the weekend for AT&T DSL customers. Starting May 2, AT&T plans to stop offering flat-rate pricing for unlimited Internet use. Instead, it will impose a monthly cap of 150 GB on its DSL subscribers and 250 GB on its U-Verse customers. (U-Verse is the pay-TV service that AT&T transmits over high-speed phone lines; the cap would apply only to those customers' Internet use, not their TV viewing.) Those who exceed the limit will be charged $10 for every additional 50 GB they consume.