Teléfonos de México (Telmex) is no longer a monopoly, but it's still Mexico's #1 provider of fixed-line telecom services with more than 18 million lines in service. The company also provides cable television, voice, data, and Internet access services to customers in other countries in Central and South America through subsidiaries in Argentina, Brazil, Chile, and Peru, among other locations. It is most active in Brazil. Carso Global Telecom, a holding company controlled by Mexican billionaire Carlos Slim Helú, owns a 71% voting stake in Telmex.

Key financials for Teléfonos de México, S.A. de C.V. (Mexican: TELMEX)

Key people and executives for Teléfonos de México, S.A. de C.V. (Mexican: TELMEX)

Top competitors of Teléfonos de México, S.A. de C.V. (Mexican: TELMEX)

• Alestra
• Avantel
• Iusacell

First Research Industry Profiles Extensive Industry Intelligence

• Internet Service Providers
• Wired Telecommunications Carriers

Hoover's Industries

• Telecommunications Services
  • Fixed-line Voice Services Providers
    • Local Exchange Carriers (primary)
  • Data Services
    • Data Network Operators
  • Telecommunications Infrastructure Development

Subsidiaries/affiliates of Teléfonos de México, S.A. de C.V. (Mexican: TELMEX)

• Chilesat Corp S.A.
• Embratel Participações S.A.

See how Teléfonos de México, S.A. de C.V. (Mexican: TELMEX) ranks in standard industry listings such as Fortune 500, S&P 500, and Dow Jones

• #454 in FT Global 500
• Mexican Bolsa