Embratel is a major Brazilian telecommunications company headquartered in Rio de Janeiro. The company was the long distance arm of Telebras until it was bought by the U.S. company MCI Communications for 2.65 billion reais during the 1998 break-up of Telebras. However, MCI Communications went bankrupt in 2003. Since 2003, it is owned by América Móvil, the Mexican telecommunications giant.