Telefonica Brasil. 

Telefônica Brasil S.A., together with its subsidiaries, operates as a mobile telecommunications company in Brazil. Its fixed line voice services portfolio includes local, domestic long-distance, and international long-distance calls; and mobile portfolio comprises voice and broadband internet access through 3G, 4G, 4.5G, and 5G, as well as value-added, prepaid plans with data sharing features, family plans, voice mail, caller identification, voice minutes in unlimited bundles to mobile and fixed-line phones, and digital services, and wireless roaming services. The company also offers data services, including broadband and mobile data services; fixed-line local services consist of activation, monthly subscription, public telephones and measured services. In addition, it provides pay TV services through IPTV technologies; network services, such as rental of facilities and other services; wholesale services, including interconnection services to users of other network providers; and digital services that include entertainment, cloud, and security and financial services. Further, the company offers multimedia communication services, which include audio, data, voice and other sounds, images, texts, and other information, as well as sells devices and accessories, such as smartphones, broadband USB modems, and other devices. Additionally, it provides telecommunications solutions and IT support to various industries, such as retail, manufacturing, services, financial institutions, government, etc; insurance services; and sale of wireless devices and consumer electronics. It markets and sells its solutions through Vivo stores, dealers, retail channels, distribution and digital channels, door-to-door sales, and outbound tele sales. The company was formerly known as Telecomunicações de São Paulo S.A. - TELESP and changed its name to Telefônica Brasil S.A. in October 2011. Telefônica Brasil S.A. was incorporated in 1998 and is headquartered in São Paulo, Brazil.