AT&T is the second-largest U.S. wireless carrier, serving 92 million traditional customers and 14 million "connected devices" such as e-readers. The firm is also the local phone company in 22 states, serving about 37 million phone lines, 16 million Internet users, and 4 million television customers. In addition, AT&T provides phone and data services, such as Web hosting and data transport, to larger businesses nationwide. The firm recently sold its directory publishing unit and is looking to refine its strategy for other slow-growth assets.