Telefonica Brasil, operating as Vivo, is the largest wireless carrier in Brazil. The company offers a wide range of telecommunications and digital services, including mobile and fixed-line voice, broadband internet access (3G, 4G, 4.5G, and 5G), pay-TV services, and various digital services like entertainment, cloud, security, and financial services. It also provides IT support and sells devices and accessories. The company was incorporated in 1998 and is headquartered in SĂŁo Paulo, Brazil.