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Even in metropolitan Buenos Aires, coverage inside buildings can be poor.

Argentina makes use of the GSM 850/1900 and the iDEN networks. The most prominent mobile telephone companies are:

• CTI Holdings (CTI Movil)
• Movistar– owned by Telefonica de Argentina
• Unifon, a unit of Telefonica Moviles S.A. (TEM), the mobile subsidiary of Spain's Telefonica S.A. (TEF);
• Personal– owned by Telecom
• Nextel
• Moviecom/BellSouth, controlled by BellSouth Corp. (BLS).
• Cotecal

Useful Address

• Subsecretaria de Defensa del Consumidor (in Spanish)