América Móvil provides wireless communications services in Latin America. In Mexico, through its subsidiary Radiomóvil Dipsa, it provides nationwide cellular telecommunications services. It operates GSM networks in Mexico, Brazil, Colombia, Ecuador, Guatemala and Nicaragua. Spun off from Telefonos de Mexico in 2000, it has become Latin America's leading wireless telephone provider by pioneering prepaid phone cards and subsidized handsets in a region with limited disposable income.