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The telecommunications industry is mostly dominated by Telmex ("Teléfonos de México"), privatized in 1990. By 2006, Telmex had expanded its operations to Colombia, Peru, Chile, Argentina, Brazil, Uruguay, and the United States. Other players in the domestic industry are Axtel, Maxcom, Alestra, Marcatel, AT&amp;T Mexico. Because of Mexican orography, providing a landline telephone service at remote mountainous areas is expensive, and the penetration of line-phones per capita is low compared to other Latin American countries, at 40 percent; however, 82% of Mexicans over the age of 14 own a mobile phone. Mobile telephony has the advantage of reaching all areas at a lower cost, and the total number of mobile lines is almost two times that of landlines, with an estimation of 63 million lines. The telecommunication industry is regulated by the government through Cofetel ("Comisión Federal de Telecomunicaciones").