MSTelcom is a subsidiary of Sonangol Group, the Angolan national oil company. MSTelcom provides a range of Telecommunications, Cloud, Cybersecurity and Datacenter services for the oil industry, financial institutions, government, corporate as well for residential customers. It has a national fiber network and three datacenters, with points of presence in Angola and abroad. Its shortname derives from the company full name in portuguese "Mercury Serviços de Telecomunicações".