The Ministry of Communications of the Union of Soviet Socialist Republics (USSR) () was the central state administration body on communications in the Soviet Union from 1923 to 1991. During its existence it had three names: People's Commissariat for Posts and Telegraphs (1923–32), People's Commissariat for Communications (1932–46) and Ministry of Communications (1946–1991). It had authority over the postal, telegraph and telephone communications as well as public radio, technical means of radio and television broadcasting, and the distribution of periodicals in the country. History Posts and Telegraphs (1923–32) In 1922, the Soviet Union was formed. Its founding document stated that, among different areas, "jurisdiction of the Union of Soviet Socialist Republics, as represented by its supreme bodies shall be": The same document defined that "the Executive Body of the Central Executive Committee of the Union is the Council of People's Commissars of the Union of Soviet Socialist Republics (CPC Union), elected by the Central Executive Committee of the Union for the term of the latter," and it would comprise the People's Commissar for Posts and Telegraphs. In the Council of People's Commissars of the Union republics, the People's Commissariat for Posts and Telegraphs had "an advisory capacity." Accordingly, after the formation of the Soviet Union, the People's Commissariat for Posts and Telegraphs of the USSR was created in 1923 instead of the similar agency of the RSFSR. Regulations on the new Commissariat were approved by the USSR Central Executive Committee session on 12 November 1923. In 1924, the People's Commissariat for Posts and Telegraphs set up a mobile postal service, providing it to rural localities. In 1925, an area inhabited by 68% of the USSR population (27% of the population centres) was covered by home delivery of mail. Regular radio broadcasting started in 1924, with radio broadcast stations being established in 1925 in Leningrad, Kiev, Minsk, Nizhny Novgorod, and other cities. By 1929, the telegraph networks destroyed in the Civil War of 1918–1920 were restored to the pre-World War I level. Further improvement of telegraph communication was aimed at a conversion to letter-printing telegraphs. The first facsimile communications line was opened in 1929. In the same year, an automatic switching system for 6,000 numbers was opened in Rostov-on-Don. In 1930, two regional automatic switching systems were launched in Moscow. On 17 January 1932, the Commissariat was re-organised and renamed the People's Commissariat for Communications. 1932–1946 The Commissariat was organised on