SBC Communications Inc., incorporated in 1983, provides communications services and products in the United States through its subsidiaries. The services and products that the Company offers vary by market and include local exchange services, wireless communications, long-distance services, Internet services, telecommunications equipment and directory advertising and publishing. Its services and products have been marketed under several brands including SBC Ameritech, SBC Nevada Bell, SBC Pacific Bell, SBC SNET, SBC Southwestern Bell, and, through its joint venture with BellSouth Corporation, Cingular Wireless. SBC operates four business segments: wireline, wireless, directory and international.