Close Menu
TechCentralTechCentral

    Subscribe to the newsletter

    Get the best South African technology news and analysis delivered to your e-mail inbox every morning.

    Facebook X (Twitter) YouTube LinkedIn
    WhatsApp Facebook X (Twitter) LinkedIn YouTube
    TechCentralTechCentral
    • News
      Post Office on the brink of collapse

      Post Office on the brink of collapse

      13 March 2026
      New policy direction targets South Africa's municipal broadband logjam - Solly Malatsi

      New policy direction targets South Africa’s municipal broadband logjam

      13 March 2026
      How electronic warfare is threatening ships and their crews

      How electronic warfare is threatening ships and their crews

      13 March 2026
      Rand slumps for second week

      Rand slumps for second week

      13 March 2026
      Parliament opens nominations for Icasa council seats

      Parliament opens nominations for Icasa council seats

      13 March 2026
    • World
      Musk launches Macrohard in cheeky nod to Microsoft - Elon Musk

      Musk launches Macrohard in cheeky nod to Microsoft

      12 March 2026
      Europe is building an alternative to Microsoft Office

      Europe is building an alternative to Microsoft Office

      11 March 2026
      Microsoft bets on Anthropic as it loosens ties with OpenAI

      Microsoft bets on Anthropic as it loosens ties with OpenAI

      10 March 2026
      World hit by worst oil shock since the 1970s

      World hit by worst oil shock since the 1970s

      9 March 2026
      iStore prices MacBook Neo at R11 999 in South Africa

      Apple debuts MacBook Neo to challenge Windows PCs, Chromebooks

      5 March 2026
    • In-depth
      The last generation of coders

      The last generation of coders

      18 February 2026
      Sentech is in dire straits

      Sentech is in dire straits

      10 February 2026
      How liberalisation is rewiring South Africa's power sector

      How liberalisation is rewiring South Africa’s power sector

      21 January 2026
      The top-performing South African tech shares of 2025

      The top-performing South African tech shares of 2025

      12 January 2026
      Digital authoritarianism grows as African states normalise internet blackouts

      Digital authoritarianism grows as African states normalise internet blackouts

      19 December 2025
    • TCS
      TCS+ | Vox Kiwi: a wireless solution promising a fibre-like experience - Theo van Zyl

      TCS+ | Vox Kiwi: a wireless solution promising a fibre-like experience

      13 March 2026
      TCS+ | Flipping the narrative on AI in the Global South - Josefin Rosén

      TCS+ | Flipping the narrative on AI in the Global South

      13 March 2026
      TCS | Sink or swim? Antony Makins on how AI is rewriting the rules of work

      TCS | Sink or swim? Antony Makins on how AI is rewriting the rules of work

      5 March 2026
      TCS+ | Bolt ups the ante on platform safety - Simo Kalajdzic

      TCS+ | Bolt ups the ante on platform safety

      4 March 2026
      Watts & Wheels S1E4: 'We drive an electric Uber'

      Watts & Wheels S1E4: ‘We drive an electric Uber’

      10 February 2026
    • Opinion
      South Africa's energy future hinges on getting wheeling right - Aishah Gire

      South Africa’s energy future hinges on getting wheeling right

      10 March 2026
      Hold the doom: the case for a South African comeback - Duncan McLeod

      Apple just dropped a bomb on the Windows world

      5 March 2026
      VC's centre of gravity is shifting - and South Africa is in the frame - Alison Collier

      VC’s centre of gravity is shifting – and South Africa is in the frame

      3 March 2026
      Hold the doom: the case for a South African comeback - Duncan McLeod

      Hold the doom: the case for a South African comeback

      26 February 2026
      The AI fraud crisis your bank is not ready for - Andries Maritz

      The AI fraud crisis your bank is not ready for

      18 February 2026
    • Company Hubs
      • 1Stream
      • Africa Data Centres
      • AfriGIS
      • Altron Digital Business
      • Altron Document Solutions
      • Altron Group
      • Arctic Wolf
      • AvertITD
      • Braintree
      • CallMiner
      • CambriLearn
      • CYBER1 Solutions
      • Digicloud Africa
      • Digimune
      • Domains.co.za
      • ESET
      • Euphoria Telecom
      • HOSTAFRICA
      • Incredible Business
      • iONLINE
      • IQbusiness
      • Iris Network Systems
      • LSD Open
      • Mitel
      • NEC XON
      • Netstar
      • Network Platforms
      • Next DLP
      • Ovations
      • Paracon
      • Paratus
      • Q-KON
      • SevenC
      • SkyWire
      • Solid8 Technologies
      • Telit Cinterion
      • Tenable
      • Vertiv
      • Videri Digital
      • Vodacom Business
      • Wipro
      • Workday
      • XLink
    • Sections
      • AI and machine learning
      • Banking
      • Broadcasting and Media
      • Cloud services
      • Contact centres and CX
      • Cryptocurrencies
      • Education and skills
      • Electronics and hardware
      • Energy and sustainability
      • Enterprise software
      • Financial services
      • HealthTech
      • Information security
      • Internet and connectivity
      • Internet of Things
      • Investment
      • IT services
      • Lifestyle
      • Motoring
      • Policy and regulation
      • Public sector
      • Retail and e-commerce
      • Satellite communications
      • Science
      • SMEs and start-ups
      • Social media
      • Talent and leadership
      • Telecoms
    • Events
    • Advertise
    TechCentralTechCentral
    Home » Sections » Internet and connectivity » Bandwidth bonanza: the undersea cables that connect South Africa to the world

    Bandwidth bonanza: the undersea cables that connect South Africa to the world

    Connectivity into South Africa - and the rest of Africa - has exploded in the past 15 years and continues to grow at a rapid pace.
    By Nkosinathi Ndlovu12 July 2024
    Twitter LinkedIn Facebook WhatsApp Email Telegram Copy Link
    News Alerts
    WhatsApp
    Bandwidth bonanza: the undersea cables that connect SA to the world
    The 2Africa cable being brought ashore in Amanzimtoti, near Durban

    Connectivity into South Africa – and the rest of Africa – has exploded in the past 15 years and continues to grow at a rapid pace.

    It’s a marked change over a relatively short time that has driven down internet prices and led to better connection speeds across the continent. Before the investments of the past 15 years, South Africa was reliant on a single cable system for its connectivity – a cable controlled by a monopoly at the time (Telkom) and priced as such.

    That all started to change around 2009, when Seacom – the first private, non-operator-controlled cable in Africa – went live between South Africa and Europe, along Africa’s east coast. Many such projects followed, driving down prices and improving the reliability of internet services in South Africa and further afield.

    The growth in undersea cable infrastructure has had positive downstream effects on cost of connectivity

    And more is coming. Google’s 144Tbit/s (design capacity) Equiano cable, which landed in South Africa in 2022 added terabits of capacity along Africa’s west coast. Now the 2Africa cable system – driven by a consortium that includes Meta Platforms – will encircle the entire continent and be the longest subsea cable system in the world (45 000km) when completed and will have a design capacity of 180Tbit/s.

    The growth in undersea cable infrastructure has had positive downstream effects on cost of connectivity on the continent, including in South Africa. Higher offshore capacity has led to massive investment in terrestrial fibre, including fibre to the home and business.

    When Sat-3 – a system that connects Cape Town and Western Europe along Africa’s west coast was the only game in town, Telkom had exclusive access to it. That meant sky-high prices.

    The Altech judgment

    “If you were an ADSL customer in the early 2000s, you just had it to suck it up in terms of speed and pricing. It was only with the arrival of the Seacom cable along the east coast of Africa in 2009 that things began to change,” said emerging markets telecommunications expert Steve Song in an interview with TechCentral.

    Song, who serves as policy adviser to the Mozilla Foundation – which supports and leads the development of the Firefox web browser – has maintained the African Undersea Cables map for many years. The map, which is updated often, shows the growth of subsea cable connectivity around Africa.

    Song said prior to Seacom going live in 2009, Sat-3/Safe (Safe being the leg of Sat-3 that extended to Asia) was the only undersea cable that connected any country in sub-Saharan Africa – excluding those bordering the Mediterranean Sea. But in many countries where it landed, purchasing capacity was as expensive as satellite backhaul, according to Song. Satellite was for a long time the only way to connect to many markets in Africa.

    Read: Google to build South Africa to Australia subsea cable called Umoja

    The East African Submarine System (Eassy) cable went live a year after Seacom, in 2010. It has 12 landing stations along Africa’s east coast, connecting a further 12 landlocked countries through terrestrial links. Seacom and Eassy began the liberalisation of the connectivity market on the continent, but there were other factors at play, too.

    A landmark 2008 ruling by the high court in Pretoria in favour of Altech, a then-subsidiary of Altron, concluded that all entities in possession of a value-added network services licences – licences that were much easier to obtain than network licences – were entitled to build their own infrastructure, effectively allowing anyone to compete directly with Telkom, MTN and Vodacom in building networks.

    Ships like Orange Marine’s Sophie Germaine are sent out to repair cable breaks when they occur

    “Prior to 2008, it was impossible to get a licence to become a network operator. You had to be invited to apply by the ministry [of communications] and no licences were being offered. The combination of all these operators in the market along with the two new cables (Seacom and Eassy) caused things suddenly to change,” said Song.

    Overnight, the Altech judgment dismantled government’s policy of “managed liberalisation” of the sector, which had effectively shielded the partially state-owned Telkom from competition.

    The next big milestone was the announcement by Vumatel of South Africa’s first fibre-to-the-home network in 2014.

    The size of the Wacs cable relative to those that came before it is indicative of technological advancements

    Meanwhile, undersea cable infrastructure continued to develop, with the West Africa Cable System (Wacs) going live in 2012. Wacs added 5.1Tbit/s in design capacity – huge at the time – while bolstering network redundancy. Others, like Africa Coast to Europe (ace), have followed.

    The size of the Wacs cable relative to those that came before it is indicative of technological advancements that made the efficient use wavelengths over optical fibre. Fibre-optic cables use pulses of light to transmit data, and splitting the light into smaller and smaller frequencies – or colours – makes it possible to transmit larger amounts of data.

    “The capacity keeps going up due to improvements in how the cables are ‘lit’,” said Song.

    Skills

    He said the growth in the capacity and number of cables surrounding the African continent will continue to improve connectivity and lower prices for consumers and businesses. The industry is challenged, however, with skills shortages in cable laying and repairs threatening the stability of the global internet.

    Steve Song

    “I expect the market to respond to that as an issue, and as we get more undersea cables, we will see companies that specialise in servicing and repairing those cables grow proportionately,” said Song.  – © 2024 NewsCentral Media

    Read next: New subsea cable planned to link Africa, Asia

    Follow TechCentral on Google News Add TechCentral as your preferred source on Google


    2Africa 2Africa cable Ace Ace cable Eassy Equiano Many Possibilities Seacom Steve Song Wacs
    WhatsApp YouTube
    Share. Facebook Twitter LinkedIn WhatsApp Telegram Email Copy Link
    Previous ArticleEllies brand to live on
    Next Article Newspaper printer Novus pivots with big AI investment

    Related Posts

    Hold the doom: the case for a South African comeback - Duncan McLeod

    Hold the doom: the case for a South African comeback

    26 February 2026
    2Africa: Meta's continent-hugging mega-cable is here

    2Africa: Meta’s continent-hugging mega-cable is here

    19 November 2025
    Seacom targeting Q4 2026 to lock in funds for huge new broadband system - Prenesh Padayachee

    Seacom targeting Q4 2026 to lock in funds for huge new broadband system

    11 November 2025
    Company News
    Households still under big pressure, Altron Fintech index shows

    Households still under big pressure, Altron Fintech index shows

    13 March 2026
    How AI is changing the way we work - Angela Ho, Obsidian Systems

    How AI is changing the way we work

    12 March 2026
    Domains.co.za introduces complete domain protection service

    Domains.co.za introduces complete domain protection service

    12 March 2026
    Opinion
    South Africa's energy future hinges on getting wheeling right - Aishah Gire

    South Africa’s energy future hinges on getting wheeling right

    10 March 2026
    Hold the doom: the case for a South African comeback - Duncan McLeod

    Apple just dropped a bomb on the Windows world

    5 March 2026
    VC's centre of gravity is shifting - and South Africa is in the frame - Alison Collier

    VC’s centre of gravity is shifting – and South Africa is in the frame

    3 March 2026

    Subscribe to Updates

    Get the best South African technology news and analysis delivered to your e-mail inbox every morning.

    Latest Posts
    Post Office on the brink of collapse

    Post Office on the brink of collapse

    13 March 2026
    New policy direction targets South Africa's municipal broadband logjam - Solly Malatsi

    New policy direction targets South Africa’s municipal broadband logjam

    13 March 2026
    How electronic warfare is threatening ships and their crews

    How electronic warfare is threatening ships and their crews

    13 March 2026
    Rand slumps for second week

    Rand slumps for second week

    13 March 2026
    © 2009 - 2026 NewsCentral Media
    • Cookie policy (ZA)
    • TechCentral – privacy and Popia

    Type above and press Enter to search. Press Esc to cancel.

    Manage consent

    TechCentral uses cookies to enhance its offerings. Consenting to these technologies allows us to serve you better. Not consenting or withdrawing consent may adversely affect certain features and functions of the website.

    Functional Always active
    The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
    Preferences
    The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
    Statistics
    The technical storage or access that is used exclusively for statistical purposes. The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
    Marketing
    The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.
    • Manage options
    • Manage services
    • Manage {vendor_count} vendors
    • Read more about these purposes
    View preferences
    • {title}
    • {title}
    • {title}