Complete List of Administrative Telegraph and Telephone Conferences
- International Telegraph Conference (London, 1879)
- International Telegraph Conference (Berlin, 1885)
- International Telegraph Conference (Paris, 1890)
- International Telegraph Conference (Budapest, 1896)
- International Telegraph Conference (London, 1903)
- International Telegraph Conference (Lisbon, 1908)
- International Telegraph Conference (Paris, 1925)
- International Telegraph Conference (Brussels, 1928)
- International Telegraph and Telephone Conference (Cairo, 1938)
- International Telegraph and Telephone Conference (Paris, 1949)
- Administrative Telegraph and Telephone Conference (Geneva, 1958)
- World Administrative Telegraph and Telephone Conference (Geneva, 1973)
- World Administrative Telegraph and Telephone Conference (Melbourne, 1988)