{"id":12756,"date":"2025-03-26T15:16:37","date_gmt":"2025-03-26T13:16:37","guid":{"rendered":"https:\/\/tremhost.com\/blog\/?p=12756"},"modified":"2025-03-26T15:16:37","modified_gmt":"2025-03-26T13:16:37","slug":"evolution-of-undersea-cables-connecting-africa-key-milestones-and-impact","status":"publish","type":"post","link":"https:\/\/tremhost.com\/blog\/evolution-of-undersea-cables-connecting-africa-key-milestones-and-impact\/","title":{"rendered":"Evolution of Undersea Cables Connecting Africa: Key Milestones and Impact"},"content":{"rendered":"
<\/div>

Evolution of Undersea Cables Connecting Africa: Key Milestones and Impact<\/h1>\n

Africa\u2019s digital transformation is closely tied to a lesser-known but crucial piece of infrastructure: undersea fiber-optic cables. These cables carry over 95% of international internet traffic. For Africa, the rollout of these cables transformed the continent from an isolated, high-cost connectivity zone to a region with growing global bandwidth and digital potential.<\/p>\n

Here\u2019s a breakdown of how undersea cables evolved around Africa, the major milestones, and the real-world impact on internet access and affordability.<\/p>\n

\n

Pre-2000s: Satellite Dependency and the Bandwidth Bottleneck<\/strong><\/h2>\n

Before undersea cables, most African countries relied heavily on satellite connections<\/strong> for international communications. These links were:<\/p>\n

    \n
  • \n

    Expensive<\/p>\n<\/li>\n

  • \n

    High-latency (slow for data transmission)<\/p>\n<\/li>\n

  • \n

    Limited in bandwidth<\/p>\n<\/li>\n<\/ul>\n

    This made internet access in Africa slow, unreliable, and unaffordable for most people. A single Mbps could cost hundreds or even thousands of dollars per month.<\/p>\n

    \n

    2001: SAT-3\/WASC\/SAFE \u2013 Africa\u2019s First Major Undersea Cable<\/strong><\/h2>\n

    \ud83c\udf0d Coverage:<\/em> West Coast (Portugal to South Africa), extending to Asia<\/h3>\n

    The SAT-3\/WASC\/SAFE<\/strong> cable was the first major step in connecting sub-Saharan Africa to the global internet via fiber.<\/p>\n

      \n
    • \n

      Countries connected<\/strong>: Senegal, Ghana, Nigeria, Cameroon, Gabon, Angola, South Africa, among others.<\/p>\n<\/li>\n

    • \n

      Challenges<\/strong>: SAT-3 was controlled by a consortium of telecom monopolies. High prices and lack of competition meant benefits were slow to reach users.<\/p>\n<\/li>\n<\/ul>\n

      Impact:<\/strong> While SAT-3 was a breakthrough technically, its real impact was limited by lack of open access and restrictive pricing.<\/p>\n

      \n

      2009: SEACOM and TEAMS \u2013 Breaking the Monopoly<\/strong><\/h2>\n

      \ud83c\udf0d Coverage:<\/em><\/h3>\n
        \n
      • \n

        SEACOM<\/strong>: Connects South and East Africa to Europe and India<\/p>\n<\/li>\n

      • \n

        TEAMS<\/strong>: Links Kenya to the UAE<\/p>\n<\/li>\n<\/ul>\n

        These two cables marked a turning point<\/strong>:<\/p>\n

          \n
        • \n

          SEACOM was privately funded and focused on open access<\/strong>.<\/p>\n<\/li>\n

        • \n

          TEAMS was a public-private partnership<\/strong> backed by the Kenyan government.<\/p>\n<\/li>\n<\/ul>\n

          Impact:<\/strong><\/p>\n

            \n
          • \n

            Dramatic drop in wholesale bandwidth prices\u2014up to 90% in some regions.<\/p>\n<\/li>\n

          • \n

            Explosion in internet use, especially in Kenya, Uganda, and Tanzania.<\/p>\n<\/li>\n

          • \n

            Entry of new ISPs and better competition.<\/p>\n<\/li>\n<\/ul>\n

            \n

            2010\u20132012: EASSy and WACS Expand Capacity<\/strong><\/h2>\n

            \ud83c\udf0d EASSy (Eastern Africa Submarine System)<\/em>:<\/h3>\n
              \n
            • \n

              Connected nine East African countries from Sudan to South Africa.<\/p>\n<\/li>\n<\/ul>\n

              \ud83c\udf0d WACS (West Africa Cable System)<\/em>:<\/h3>\n
                \n
              • \n

                Ran from South Africa to the UK, boosting bandwidth for West Africa.<\/p>\n<\/li>\n<\/ul>\n

                Impact:<\/strong><\/p>\n

                  \n
                • \n

                  Broadened access to international capacity.<\/p>\n<\/li>\n

                • \n

                  Reduced reliance on SAT-3.<\/p>\n<\/li>\n

                • \n

                  Helped countries like Mozambique, Madagascar, and Namibia get better internet performance.<\/p>\n<\/li>\n<\/ul>\n

                  By 2012, most African coastal countries had at least one<\/strong> undersea cable connection\u2014many had two or more.<\/p>\n

                  \n

                  2018\u20132023: The Megaprojects \u2013 Equiano and 2Africa<\/strong><\/h2>\n

                  \ud83c\udf0d Equiano (Google)<\/em>:<\/h3>\n
                    \n
                  • \n

                    Announced in 2019, went live in segments by 2023.<\/p>\n<\/li>\n

                  • \n

                    Runs from Portugal to South Africa, branching into Nigeria and Namibia.<\/p>\n<\/li>\n

                  • \n

                    Uses space-division multiplexing (SDM)<\/strong> for 20x more capacity.<\/p>\n<\/li>\n<\/ul>\n

                    \ud83c\udf0d 2Africa (Meta\/Facebook, China Mobile, Orange, etc.)<\/em>:<\/h3>\n
                      \n
                    • \n

                      One of the largest subsea cable projects in the world<\/strong>.<\/p>\n<\/li>\n

                    • \n

                      Will circle the African continent, linking 33 countries across Africa, the Middle East, and Europe.<\/p>\n<\/li>\n

                    • \n

                      Expected completion: 2024\u20132025<\/strong>.<\/p>\n<\/li>\n<\/ul>\n

                      Impact:<\/strong><\/p>\n

                        \n
                      • \n

                        Massive increase in capacity.<\/p>\n<\/li>\n

                      • \n

                        Improved redundancy\u2014if one cable goes down, others can carry the load.<\/p>\n<\/li>\n

                      • \n

                        Direct cable landings in many previously under-connected countries.<\/p>\n<\/li>\n<\/ul>\n

                        \n

                        Current Landscape (2025)<\/strong><\/h2>\n

                        As of 2025, Africa is served by over 15 major undersea cables<\/strong>, including:<\/p>\n

                          \n
                        • \n

                          SAT-3\/WASC\/SAFE<\/strong><\/p>\n<\/li>\n

                        • \n

                          SEACOM<\/strong><\/p>\n<\/li>\n

                        • \n

                          TEAMS<\/strong><\/p>\n<\/li>\n

                        • \n

                          EASSy<\/strong><\/p>\n<\/li>\n

                        • \n

                          WACS<\/strong><\/p>\n<\/li>\n

                        • \n

                          MainOne<\/strong><\/p>\n<\/li>\n

                        • \n

                          ACE<\/strong><\/p>\n<\/li>\n

                        • \n

                          Equiano<\/strong><\/p>\n<\/li>\n

                        • \n

                          2Africa (partially live)<\/strong><\/p>\n<\/li>\n<\/ul>\n

                          Most coastal countries now have access to multiple landing points<\/strong>, increasing resilience and market competition.<\/p>\n

                          \n

                          Key Impacts of Undersea Cables on Africa<\/strong><\/h2>\n

                          1. Cheaper Bandwidth<\/strong><\/h3>\n

                          Wholesale internet costs dropped by up to 95%<\/strong> in some regions compared to satellite-era prices.<\/p>\n

                          2. Faster Internet<\/strong><\/h3>\n

                          Latency improved dramatically, especially for traffic routed to Europe and Asia. This made streaming, cloud services, and online learning viable.<\/p>\n

                          3. More Competition<\/strong><\/h3>\n

                          Multiple cables meant multiple providers could enter the market, forcing incumbents to lower prices and improve service.<\/p>\n

                          4. Tech Ecosystem Growth<\/strong><\/h3>\n

                          Lower connectivity costs enabled the rise of tech hubs, startups, and digital services in places like Nairobi, Lagos, and Cape Town.<\/p>\n

                          5. Regional Data Centers<\/strong><\/h3>\n

                          With reliable international connections, local data centers became feasible. Africa\u2019s data center footprint is now growing rapidly, especially in South Africa, Kenya, and Nigeria.<\/p>\n

                          6. Better Redundancy<\/strong><\/h3>\n

                          Multiple cables reduced the risk of total outages. When one cable is cut (due to ship anchors, earthquakes, etc.), others can pick up the slack.<\/p>\n

                          \n

                          Remaining Gaps and Challenges<\/strong><\/h2>\n

                          Despite all this progress, a few issues remain:<\/p>\n

                            \n
                          • \n

                            Landlocked countries<\/strong> still depend on neighbors for international access, which raises prices and vulnerability.<\/p>\n<\/li>\n

                          • \n

                            Inland fiber networks<\/strong> (from the coast to rural or interior regions) are underdeveloped in many countries.<\/p>\n<\/li>\n

                          • \n

                            Monopolistic control<\/strong> still exists at some landing stations, especially in countries with weak regulation.<\/p>\n<\/li>\n

                          • \n

                            Political instability and corruption<\/strong> can delay or derail infrastructure projects.<\/p>\n<\/li>\n<\/ul>\n

                            \n

                            Looking Ahead: The Future of Africa\u2019s Subsea Connectivity<\/strong><\/h2>\n

                            The next few years will likely focus on:<\/p>\n

                              \n
                            • \n

                              Expanding 2Africa<\/strong> to full operation.<\/p>\n<\/li>\n

                            • \n

                              Strengthening terrestrial backhaul<\/strong> to distribute international capacity more widely.<\/p>\n<\/li>\n

                            • \n

                              Encouraging open access policies<\/strong> at landing stations to level the playing field.<\/p>\n<\/li>\n

                            • \n

                              Adding more direct international routes<\/strong>, such as to Latin America or Southeast Asia, reducing dependency on European exchanges.<\/p>\n<\/li>\n<\/ul>\n

                              \n

                              Conclusion<\/strong><\/h2>\n

                              Undersea cables changed everything for Africa\u2019s internet. From being tethered to costly satellite connections, the continent now enjoys access to some of the fastest, highest-capacity infrastructure available. While challenges remain\u2014especially in inland and rural areas\u2014the cable revolution has laid the foundation for a digitally connected Africa.<\/p>\n

                              The evolution of these cables is not just a technical story. It\u2019s a story about inclusion, opportunity, and the potential for over a billion people to access the global digital economy.<\/p>\n","protected":false},"excerpt":{"rendered":"

                              Evolution of Undersea Cables Connecting Africa: Key Milestones and Impact Africa\u2019s digital transformation is closely tied to a lesser-known but crucial piece of infrastructure: undersea fiber-optic cables. These cables carry over 95% of international internet traffic. For Africa, the rollout of these cables transformed the continent from an isolated, high-cost connectivity zone to a region […]<\/p>\n","protected":false},"author":1772,"featured_media":12758,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"tdm_status":"","tdm_grid_status":"","footnotes":""},"categories":[142],"tags":[],"class_list":{"0":"post-12756","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-case-study"},"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/tremhost.com\/blog\/wp-json\/wp\/v2\/posts\/12756","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tremhost.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tremhost.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tremhost.com\/blog\/wp-json\/wp\/v2\/users\/1772"}],"replies":[{"embeddable":true,"href":"https:\/\/tremhost.com\/blog\/wp-json\/wp\/v2\/comments?post=12756"}],"version-history":[{"count":1,"href":"https:\/\/tremhost.com\/blog\/wp-json\/wp\/v2\/posts\/12756\/revisions"}],"predecessor-version":[{"id":12759,"href":"https:\/\/tremhost.com\/blog\/wp-json\/wp\/v2\/posts\/12756\/revisions\/12759"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tremhost.com\/blog\/wp-json\/wp\/v2\/media\/12758"}],"wp:attachment":[{"href":"https:\/\/tremhost.com\/blog\/wp-json\/wp\/v2\/media?parent=12756"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tremhost.com\/blog\/wp-json\/wp\/v2\/categories?post=12756"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tremhost.com\/blog\/wp-json\/wp\/v2\/tags?post=12756"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}