Organization: Telmex
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Telefonos de Mexico (Telmex) is no longer a monopoly, but it's still one of Mexico's top providers of fixed-line telecom services with about 18 million lines in service. The company offers local fixed-line wired services; domestic and international long distance services; facility-based long-distance services; and data transmission and cross-border data transit services, as well as provides prepaid telephone cards and payment collection services for lines in Mexico. Of the Telmex's revenues during the year ended December 31, 2008, 39.5% was attributable to local service, 19.8% to long-distance service, 15.4% to interconnection, 9.8% to corporate networks, and 10.6% to Internet access services. It also has operations in Argentina, Brazil, Chile, Colombia, Peru, Ecuador and the United States.