This paper presents empirical evidence on how telecommunications infrastructure is related to economic growth in a panel dataset covering 44 African countries for the period from 1990 to 2010. A dynamic panel data approach model is employed, which suggests that telecommunications contribute in a major way to the economic development of the continent, after controlling for a number of other factors. Furthermore, the findings also show that investment in telecommunications is subject to increasing returns, demonstrating that an increase in telecommunications investment produces further growth. Therefore, telecommunications investment and services should be encouraged in the region.