Millicom International Cellular, also known as Tigo, is a mobile phone network provider in America and Africa. Based in Luxembourg, the company provides mobile services in 13 countries. With operations across Central America, South America, South-east Asia, and Africa, using GSM, CDMA and TDMA on Africa and Asia, GSM and UMTS over Central America and South America. Millicom also is the owner of Amnet, a company that provides cable television and broadband internet services in Costa Rica, Honduras and El Salvador; additionally the company provides corporate data services in Guatemala and Nicaragua.