Africa Mobile Networks (AMN), which serves previously unconnected communities in 10 countries in Sub-Saharan Africa, processed 91,623,222 voice calls in June 2020. This represents a rate of 1.1 billion calls per annum.

The company said it is installing new base stations at a rate of about 200 per month and by the end of 2020 will have nearly 2,000 base stations.
AMN is backed by Intelsat, operator of the world’s largest integrated satellite and terrestrial network.
http://www.africamobilenetworks.com