O2 Czech Republic a.s. (TFAOF) serves as the leading integrated telecommunications operator in the Czech Republic, providing fixed and mobile voice, internet, data, pay TV, and ICT services to residential customers, SMEs, corporations, and government entities; core offerings include mobile tariffs with 5G and LTE technologies, fixed-line broadband via optical and MAX internet, O2 TV internet television, Oneplay video streaming, cloud computing, hosting, housing in TIER III-certified data centers, equipment such as smartphones and smart devices, and convergent bundles like O2 Spolu and O2 Connect for multi-device connectivity. Founded in 2006 through the merger of Český Telecom and Eurotel and headquartered at Za Brumlovkou 266/2 in Prague, the company operates over six million fixed and mobile lines, leveraging HSPA+, UMTS, EDGE, and CDMA networks while serving as a key player in the Czech telecom market with infrastructure partially separated into CETIN for wholesale access. A subsidiary of PPF Group since its full acquisition in 2021, O2 Czech Republic recently completed the acquisition of Nordic Telecom Regional s.r.o. in September 2024 to expand its regional footprint, launched Oneplay through the merger of O2 TV with CME’s Voyo streaming service, formed the Unity partnership with Air Bank for innovative financial-telecom integration, agreed to LTE network sharing with T-Mobile Czech Republic in 2025 to enhance coverage, and signed a memorandum with the Ministry of Defence for private mobile networks.