AT&T DSL AND U-VERSE CAPS BEGIN TODAY...MAYBE

Today is the day that AT&T starts imposing data caps on DSL and U-Verse Internet, and begins tallying up overage fees. At least, that was the plan on March 18th -- when the company formally announced 150GB DSL and 250GB U-Verse caps -- but even if you're a paying customer who chows down several hundred gigabytes in a month, you may not have to worry about paying extra right away.

AT&T specified that users will have access to an online tool to self-police your usage before the company even begins to calculate the cost of your formerly all-you-can-eat bandwidth buffet, and as you can see in the picture above, the tool isn't quite ready for public consumption across the entire country.

AT&T TO IMPOSE CAPS ON DSL AND U-VERSE INTERNET

AT&T says it will implement a 150GB monthly cap on landline DSL customers and a 250GB cap on subscribers to U-Verse high speed internet starting on May 2nd. AT&T will also charge overage fees of $10 for every additional 50GB of data, with two grace periods to start out -- in other words, the third month you go over the cap is when you'll get charged. DSLReports says it has confirmation from AT&T that these rates are legitimate, and that letters will go out to customers starting March 18th.

According to AT&T the new caps will only impact two percent of consumers who use "a disproportionate amount of bandwidth," and poses the caps as an alternative to throttling transfer speeds or disconnecting excessive users from the service completely. Customers will be able to check their usage with an online tool, and get notifications when they reach 65 percent, 90 percent and 100 percent of their monthly rates.