![]() These early cables used copper wires in their cores, but modern cables use optical fiber technology to carry digital data, which includes telephone, Internet and private data traffic. Subsequent generations of cables carried telephone traffic, then data communications traffic. Submarine cables first connected all the world's continents (except Antarctica) when Java was connected to Darwin, Northern Territory, Australia, in 1871 in anticipation of the completion of the Australian Overland Telegraph Line in 1872 connecting to Adelaide, South Australia and thence to the rest of Australia. The first submarine communications cables laid beginning in the 1850s carried telegraphy traffic, establishing the first instant telecommunications links between continents, such as the first transatlantic telegraph cable which became operational on 16 August 1858. The 2021 Submarine Cable Map is available as a physical art piece or to explore as an interactive version reference.Transoceanic communication line placed on the seabedĪ cross section of the shore-end of a modern submarine communications cable.Ĩ – Optical fibers Submarine cables are laid using special cable layer ships, such as the modern René Descartes, operated by Orange Marine.Ī submarine communications cable is a cable laid on the seabed between land-based stations to carry telecommunication signals across stretches of ocean and sea. Their primary research areas include enterprise MPLS VPN, Ethernet, dedicated internet access, and international private line service providers and pricing. TeleGeography is a telecommunications market research and consulting firm that conducts in-depth research, compiles large data sets, and presents this information in online reports and databases. "The submarine cable market has never been so dynamic and we're thrilled to showcase our data and analysis on all things subsea cable. Over the last decade, we've seen content providers emerge as disruptors, ramping up investments to meet global demand for their services. ![]() ![]() "The 2021 map illustrates a market that's experiencing more deployments, with new and diverse players. TeleGeography research director Alan Mauldin says, “We're excited to launch our latest Submarine Cable Map and would like to thank Telecom Egypt for supporting it this year. The Intra-Asian route is expected to experience the most investment, with a projected $1.6 billion in new cables to be launched. New subsea cables have been deployed across every global route grouping, with more systems expected in the coming three years. Out of these planned cables, 19 are brand new to TeleGeography's map, boasting a combined length 103,348 km. Of the 464 cables displayed in this 2021 edition of this map, 428 are active and 36 are planned. Google alone has more than 15 subsea cable investments globally.Īnother noteworthy statistic and cable fact highlighted on the map states that there are more than 1.3 million kilometres of submarine cables spanning the globe, which would wrap around Earth more than 30 times end-to-end. These companies have seen incredible demand for data center traffic, so much so that they're driving projects and route prioritisation for submarine cable systems. Unlike previous cable construction booms, content providers such as Amazon, Google, Facebook, and Microsoft are taking a more active role in the submarine cable market. Having accounted for less than 10% prior to 2012, content providers' share of total capacity surged to 66% in 2020, according to TeleGeography. The map further analyses the changing dynamics in the market and influence of new players on submarine cable investments. The map visualises 464 global cables and 1,245 landing stations, as well as major future deployments. ![]() TeleGeography has launched its 2021 Submarine Cable Map, sponsored by Telecom Egypt, which reveals the plan for more than $8 billion in cable investments over the next three years.
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