The National Backbone network, 4352 km long, serves all 8 regions, 33 prefectures and 62 main cities with the latest fiber optic transmission technologies. The Submarine Cable Map is a free and regularly updated resource from TeleGeography. The Guinean government has completed an expansion of the national fiber optic backbone capacity from 50 to 200 gigabytes, the Ministry of Posts, Telecommunications, and the Digital Economy said on Monday. The upgrade aims to improve internet service quality for Guineans. Show me range to terrestrial fiber nodes on the map? Is the ITU building in Geneva Switzerland within 10 km of a fibre node? Start measuring on the map to see calculations here. To achieve this, the country has launched the tailor-made deployment of optical fiber networks. Designed by the Chinese telecom giant Huawei in partnership with French digital spatial planning agency TACTIS, the Backbone infrastructure. This is a list of terrestrial fibre optic cable projects in Africa.