Carlos Slim Domit

Teléfonos de México SAB de CV is a telecommunications company. It is engaged in owning and operating a fixed-line telecommunications system, offering connectivity, Internet access, co-location, hosting and interconnection services. The company was founded on December 23, 1920 and is headquartered in Mexico City, Mexico.

América Telecom SA de CV provides cellular and telecommunication services. It provides telecommunication services, through its subsidiary Telcel, in the nine mobile regions into which Mexico is divided. Its other subsidiaries include Corporativo Empresarial en Telecomunicaciones, Orca, Technology Fund One, Enitel Intelsat, Construccion y Servicios Internacionales, Techtel LMDS Comunicaciones Interactivas SA, Telet SA, Americel SA, Comunicacion Celular SA, Consorcio Ecuatoriano de Telecomunicaciones SA, Telecomunicaciones de Guatemala, SA, Telcel CompUSA, Inc., TracFone Wireless, Inc., Arbros Communications, Inc. and Genesis Telecom CA, which operate in various countries in the American continent. The company was founded in December 2001 and is located in Mexico City, Mexico.

Telmex Internacional SA de CV is a holding company. It is engaged in providing telecommunications services such as voice, data, internet access, pay television and integrated communications solutions, through its subsidiaries. The company was founded on December 26, 2007 and is headquartered in Mexico city, Mexico

Carso Global Telecom SAB de CV is engaged in providing telecommunication services. The company was founded on June 24, 1996 and is headquartered in Mexico City, Mexico.

US Commercial Corp. SA de CV markets and distributes personal computers and accessories. The company was founded on November 29, 2001 and is headquartered in Mexico City.