 Mexico's communication services market is among the largest in Latin America, liberalized in the 1990s, with the landmark privatization of Teléfonos de México (Telmex), a previously state-owned monopoly.Since then, new operators have entered the market, but Telmex still remains the dominant player.Founded on 13 May 1891, as the Secretariat of Communications and Public Works, the SCT is divided into three subsecretariats