AT&T Inc. is a holding company. Co. is a provider of telecommunications and technology services globally. Co. operates through two segments: Communications and Latin America. The Communications segment provides wireless and wireline telecom and broadband services to consumers located in the U.S. and businesses globally. The business units of the Communication segment include Mobility, Business Wireline and Consumer Wireline. Mobility provides nationwide wireless service and equipment. Business Wireline provides advanced ethernet-based fiber services, IP Voice and managed professional services, as well as traditional voice and data services and related equipment to business customers.