Telefonica Brasil. 

Telefônica Brasil S.A. operates as a prominent telecommunications provider in Brazil, offering an extensive range of mobile and fixed-line services to both individual consumers and business clients. Its landline telephony services include local, domestic long-distance, and international long-distance calling. The mobile segment delivers voice communication and high-speed broadband internet access, leveraging technologies from 3G up to 5G, alongside value-added services and global roaming capabilities. Additionally, the company furnishes dedicated broadband and mobile data connectivity. For entertainment, it supplies pay TV services through direct-to-home satellite, IPTV, and cable, featuring pay-per-view and video-on-demand options. Beyond core services, Telefônica Brasil offers network infrastructure rentals and various specialized solutions such as private network connectivity, computer equipment leasing, extended service plans, caller identification, and voicemail. Its wholesale operations include essential interconnection services for other network providers. Digital services encompass entertainment platforms, cloud solutions, cybersecurity, and financial services. The company also facilitates multimedia communication, supporting the transmission of audio, data, voice, images, and text. It sells a variety of devices, including smartphones and broadband USB modems. Telefônica Brasil further provides tailored telecommunications and IT support to diverse industries, such as retail, manufacturing, services, financial institutions, and government. Its solutions are distributed through multiple channels, including company-owned stores, authorized dealers, retail and distribution networks, direct door-to-door sales, and outbound telesales efforts. Established in 1998 and based in São Paulo, Brazil, the company changed its name to Telefônica Brasil S.A. in October 2011, having previously been known as Telecomunicações de São Paulo S.A. - TELESP.