Wireless carriers are getting increasingly forceful in their efforts to pitch mobile bandwidth as a scarce, valuable commodity — setting up a battle with consumer groups that support open-Internet rules and longtime customers who treasure their unlimited data plans.
Among U.S. carriers, AT&T Inc. is leading the charge. Its latest scuffle came on Friday, a day after the country’s second-largest wireless company said its 17 million customers who subscribed to unlimited-data plans will see much slower speeds if they exceed a new monthly usage cap.
