* Communications – the telephone system used to be a state monopoly, and Brasilia held the HQ of Telebrás, the central state company. One of the enterprises that resulted from the privatization of the system in the 1990s, Brasil Telecom, keeps its HQ in the city; the official Postal Service (Correios) HQ is located in the city as well; as it is the main place of Federal Government news, it is also notable the activities of TV stations, including the main offices of four public networks (TV Brasil/Agência Brasil, TV Câmara, TV Senado and TV Justiça), the regional offices of four major private television networks (Rede Globo, SBT, Rede Bandeirantes and Rede Record) and a main affiliate of RedeTV!;