CETIN a.s. builds, owns, operates, and manages telecommunications infrastructure in Czechia, Germany, Slovakia, other E.U. countries, Switzerland, and other non-E.U. countries. It engages in the provision of wholesale telecommunication services that include mobile, fixed, and data services to other Czech telco operators; and routing and termination of international voice traffic to international operators. The company offers fixed and mobile network infrastructure services, including network access, xDSL, fiber to the home/fiber to the building connection, Internet protocol television, voice and data services, data center leasing, and other services. It also provides international voice and data services through physical network nodes in London, Vienna, Bratislava, Frankfurt, and Hong Kong. CETIN a.s. serves telecom operators and Internet access providers. The company was incorporated in 2015 and is based in Prague, Czech Republic. CETIN a.s. operates as a subsidiary of CETIN Group N.V.