Mcel: GSM-900/1800 MHz (GPRS,EDGE)900/2100 MHz UMTS, HSDPA
Vodacom: Vodacom Group Limited (Vodacom) is an African mobile communications company, providing voice, messaging, data and converged services to over 55 million customers. From its roots in South Africa, Vodacom has grown its operations to include networks in Tanzania, the Democratic Republic of Congo,Mozambique, and Lesotho and provides business services to customers in over 40 African countries such as Nigeria, Zambia, Angola, Kenya, Ghana,Côte d’Ivoire, and Cameroon. It was owned on a 50:50 basis by the South African telecommunications group Telkom and the British mobile phone operator Vodafone.GSM-900/1800 MHz (GPRS,EDGE)2100 MHz UMTS, HSDPA.
Movitel: GSM,Viettel Group (full name in Vietnamese is Vietnam’s largest mobile network operator. It is a state-owned enterprise wholly owned and operated by the Ministry of Defence. As of 2014, Viettel currently has 80,000 employees inside and outside the country. Viettel currently serves 63 million subscribers.