R100 North

Overview

R100 North is a domestic submarine cable system operating entirely within the United Kingdom. Spanning 224 kilometres, it serves the Scottish island communities of the Orkney Islands, Shetland Islands, Inner Hebrides, and the Scottish mainland coast. With 30 landing points distributed across these island groups and coastal locations, R100 North provides connectivity to some of the most geographically dispersed communities in the UK.

Route and Landings

All landing points on R100 North are located within the United Kingdom. The cable reaches a large number of Scottish island and coastal sites, including Baile Mòr, Bay of London, Belmont, Burravoe, Crockness, Cusbay, Evie, Fair Isle, Fionnaphort, Gump of Spurness, Gutcher, Hoxa, Kiloran Bay, Laig, Linksness, Morar, Mossbank, Odie, Port Appin, Port Ramsay, Quoyness, Rapness, Sandgarth, Scoor, Scuthvie Bay, Skelberry, Stove, Sumburgh, Symbister, and Weddel. These locations span the Shetland Islands, Orkney Islands, and the Inner Hebrides island chain, as well as points along the Scottish mainland coast.

Ownership and Operators

R100 North is owned and operated by BT. BT, the British telecommunications group, is one of the United Kingdom's principal fixed-line network operators and has delivered this cable as part of its programme to extend fibre connectivity to remote island communities in Scotland.

Status and Timeline

R100 North entered service in 2023. The cable represents a recent addition to the United Kingdom's domestic subsea infrastructure, extending broadband connectivity to island communities that have historically relied on more limited terrestrial or wireless links.

Regional Context

R100 North occupies a distinct position within the broader United Kingdom submarine cable landscape. Unlike the long-haul international systems that also land in the UK — such as 2Africa, the Europe India Gateway, Atlantic Crossing-1, Apollo, EXA North and South, and Glo-1, which collectively stretch across tens of thousands of kilometres and link the UK to continents across the globe — R100 North is a short-haul domestic system. At 224 kilometres, its purpose is not international transit but rather intra-national connectivity, linking remote Scottish islands to the mainland network.

Strategic Role

R100 North enables fibre-based broadband access for communities across the Scottish islands and adjacent mainland coast that would otherwise face significant geographic barriers to connectivity. The cable's 30 landing points reflect the dispersed settlement pattern of these island groups, and the system's domestic character distinguishes it clearly from the international cables that use UK shores as transit hubs for intercontinental traffic.