TIM Participações S.A., through its subsidiaries, provides mobile telecommunications services using digital technologies to business and individual customers in Brazil. The company offers mobile, fixed and long distance telephony, and data transmission and Internet services. It provides prepaid and post paid services, as well as offers various value-added services, including short message services or text messaging, multimedia messaging services, push-mail, Blackberry services, video call, turbo mail, WAP downloads, Web browsing, business data solutions, songs, games, TV access, voice mail, conference calling, chats, and other content and services. The company also provides interconnection services to fixed line and mobile service providers. Further, it offers co-billing services to other telecommunication service providers; sells various mobile handsets and accessories through its dealer network, which includes its own stores, exclusive franchises, authorized dealers, and department stores. As of December 31, 2012, the company served a subscriber base of 70.3 million clients; and marketed through a distribution network of approximately 10,000 points of sale, which include approximately 131 company owned stores, as well as had 470,000 recharging points for prepaid services. It was formerly known as Tele Celular Sul Participações S.A. and changed its name to TIM Participações S.A. in August 2004. The company was founded in 1998 and is headquartered in Rio de Janeiro, Brazil. TIM Participações S.A. is a subsidiary of TIM Brasil Serviços e Participações S.A.