AT&T Customers, Say Adios to No-Limits Broadband AT&T says monthly cap will affect only 2% of users By Mark Russell, Newser Staff Posted Mar 14, 2011 8:33 AM CDT 9 comments Comments AT&T says it will cap its broadband Internet; going over the limit will cost you $10 for each 50GB. (Shutterstock) (Newser) – AT&T is ending its unlimited broadband policy. Beginning May 2, the company will place a monthly cap on its subscribers, reports Engadget. If DSL subscribers go over the 150GB limit, or U-Verse subscribers top 250GB, then they will be charged an extra $10 for each additional 50GB (after two freebie overages). Less than 2% of AT&T subscribers should be affected, the company said in a statement, describing them as "those who are using a disproportionate amount of bandwidth." AT&T said customers can get notifications so they can keep track of their usage, at 65%, 90%, and 100% of their monthly limits. "The top 2% of residential subscribers uses about 20% of the bandwidth on our network," said AT&T in a statement. "Lopsided usage patterns can cause congestion at certain points in the network, which can slow Internet speeds and interfere with other customers' access to and use of the network."