List of subsidiaries of Telefonos de Mexico, S.A. de C.V.

EX-8.1 7 dex81.htm LIST OF SUBSIDIARIES OF TELEFONOS DE MEXICO, S.A. DE C.V. List of subsidiaries of Telefonos de Mexico, S.A. de C.V.

Exhibit 8.1

Significant Subsidiaries and Investees

The following table sets forth our significant subsidiaries and investees accounted for using the equity method at May 31, 2005:


Name of Company	Jurisdiction of Establishment	Percentage of Ownership and Voting Interest	Description
Controladora de Servicios de Telecomunicaciones, S.A. de C.V.	Mexico	100.0%	Intermediate holding company

Alquiladora de Casas, S.A. de C.V.	Mexico	100.0%	Real estate company owning our facilities

Anuncios en Directorios, S.A. de C.V.	Mexico	100.0%	Producer of yellow pages directories

Compañía de Teléfonos y Bienes Raíces, S.A. de C.V.	Mexico	100.0%	Real estate company owning our facilities

Consorcio Red Uno, S.A. de C.V.	Mexico	100.0%	Supplier of telecommunications network integration services and information systems

Teléfonos del Noroeste, S.A. de C.V., or Telnor	Mexico	100.0%	Fixed-line network concessionaire for the state of Baja California Norte and the San Luis Rio Colorado region of the state of Sonora

Uninet, S.A. de C.V.	Mexico	100.0%	Provider of corporate networks services and Internet access to Telmex and commercial customers

Telmex USA, L.L.C.	Delaware	100.0%	Authorized reseller of long distance services and holder of FCC authorization to provide facility-based long distance services in the United States

Latam Telecomunicaciones LLC	Delaware	100.0%	Holding company for non-Mexican subsidiaries and investments

Embratel Participações S.A.	Brazil	95.1%⁽¹⁾	Intermediate holding company of subsidiary that provides domestic and international long distance, local and data services in Brazil

Empresa Brasileira de Telecomunicações S.A. – EMBRATEL	Brazil	94.0%⁽¹⁾	Provider of domestic and international long distance, local and data services in Brazil

Star One S.A.	Brazil	75.2%	Provider of satellite services in Brazil

Telmex do Brasil, Ltda.	Brazil	100.0%	Provider of telecommunications services to corporate customers in Brazil

Telmex Chile Holding, S.A.	Chile	100.0%	Holding company for assets acquired from AT&T Latin America Corp. in Chile

Telmex Corp. S.A. (formerly Chilesat Corp S.A.)	Chile	99.3%	Intermediate holding company whose subsidiaries provide long distance, Internet and data network services in Chile

Techtel-LMDS Comunicaciones Interactivas, S.A.	Argentina	93.4%	Provider of wireless voice, data and video transfer services and local and long distance fixed-line voice services in Argentina


Name of Company	Jurisdiction of Establishment	Percentage of Ownership and Voting Interest	Description
Telmex Argentina S.A.	Argentina	100.0%	Provider of telecommunications services to corporate customers in Argentina

Metrored Telecomunicaciones S.R.L.	Argentina	83.4%	Provider of data services in Argentina

Telmex Colombia S.A.	Colombia	100.0%	Provider of telecommunications services to corporate customers in Colombia

Telmex Perú S.A.	Peru	100.0%	Provider of telecommunications services to corporate customers in Peru

Grupo Telvista S.A. de C.V.⁽²⁾	Delaware	45.0%	Provider of telemarketing services in the United States and Mexico

TM & MS, LLC⁽²⁾	Delaware	50.0%	Joint venture with Microsoft to operate an Internet portal (T1MSN)

(1)	Corresponds to voting interest. Our effective ownership of the total capital of Embratel Participações S.A. is 63.9% and of Empresa Brasileira de Telecomunicações S.A. – EMBRATEL is 63.1%.

(2)	Investments accounted for using the equity method.