Juan Carlos Ros Brugueras

Telefónica de Argentina SA is a telecommunications. It is engaged in offering telephone-related services such as PCS, basic telephone service, local telephony, domestic long-distance, domestic long-distance, international long-distance, public telephone, internet access, data transmission service, value-added service and cellular services. The company was founded on April 23, 1990 and is headquartered in Buenos Aires, Argentina.

The Group's principal activities are the operation of cellular telecommunication services in the States of Rio de Janeiro and Espirito Santo. The Group also provides services such as data transmission, cellular mobile telephone services, video text and telex transmission.The Group has two fully owned subsidiaries, Telerj Celular SA and Telest Celular SA, which operate in the states of Rio de Janeiro and Espirito Santo respectively. The Group has total 4740 thousand clients and 51 own sales-centres at the end of 2005.

Telefónica Internacional operates as a holding company with interests in the telecommunications industry. The firm is based in Madrid.

Cia Riograndense de Telecomunicações provides local and long-distance telecommunications services, fixed and mobile telephone services, data transmission for corporate clients, and public telephone services. The company is based in Porto Alegre, Brazil.

Cia Telefonica da Borda do Campo provides hosting and computer related services.

Telest Celular SA provides cellular telecommunication services.