There are three cell phone companies in Guatemala (4 according to Wikipedia). Tigo is the mobile phone brand of Millicom International Cellular. Claro mobile telephone operator is owned by the Mexican group América Móvil, which in turn is the umbrella name for the mobile telephone division of Telmex, owned by Carlos Slim (estimated fortune of US$67.8 billion). Carlos Slim’s empire also owns the Guatemalan National Telephone Company, Telgua, and Telgua’s division of cellphone Claro brand. Movistar is the mobile division of the Spanish transnational Telefónica telephone company. Believe it or not the Telmex/América Móvil and Movistar/Telefónica are probably bigger than AT&T.