Three competing satellite constellations.

Iridium, Inmarsat and Thuraya, behind these three brands lies a satellite network and global coverage. Iridium and Inmarsat have worldwide coverage. They work throughout the world. Thuraya operates a geostationary satellite and a terrestrial station located in the United Arab Emirates. This system covers a large zone in Europe and Africa (North Sea, English Channel, Atlantic and Mediterranean.) It is not therefore, effective, approaching the American continent. From 2011, it will also cover the zone Pacific Asia (Thuraya 3.)