Carlos José Ramón Casanueva de Landa

Compañía de Teléfonos de Coyhaique SA establishes, installs, utilizes and handles telephone services. It is engaged in handling telephone services including domestic local and long distance, international long distance, and providing other telecommunications services. The company was founded on December 29, 1958 and is headquartered in Coyhaique, Chile.

Compañía Nacional de Teléfonos Telefónica del Sur SA provides telecommunication services. Its products include internet data and connection, digital television, and mobile services. The firm operates through Fixed Telecommunications, and Others segment. The Fixed Telecommunications segments includes fixed telephony services, connections and line installations, data network services, Internet access, television, and value added services. The Other segment offers marketing of long distance national and international services, mobile, and integrated security services, such as security cameras and access control. The company was founded on April 29, 1893 and is headquartered in Valdivia, Chile.

Part of GTD Grupo Teleductos SA, GTD Cableado de Redes Inteligentes SL provides telecom infrastructure management services. The company is based in Las Rozas De Madrid, Spain. The Spanish company was founded in 2004. The CEO is Derrick Anthony Pastor Wilkinson. GTD Cableado de Redes Inteligentes was acquired by GTD Grupo Teleductos SA from Wien Kanal Abwassertechnologien Gesmbh on November 30, 2017.

Part of Compañía Nacional de Teléfonos Telefónica del Sur SA, Plug & Play Net SA provides cable television and broadband internet services. The CEO of the Chilean company is Juan Carlos Valenzuela Herrera. Plug & Play Net was acquired by Compañía Nacional de Teléfonos Telefónica del Sur SA on August 27, 2014.