Here are key groups providing onboard Internet service for passenger aircraft:
Gogo Inc, the dominant U.S. provider with systems on about 80 percent of Wifi-equipped U.S. planes. Works with satellite providers Intelsat SA, SES SA and Inmarsat PLC.
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Row44, owned by Global Eagle Entertainment Inc, provides service to Southwest Airlines, among others. Works with satellite providers Hughes, a unit of EchoStar Corp, and Intelsat.
LiveTV, owned by Thales of France. Works with satellite providers ViaSat and Iridium Communications Inc.
Panasonic Avionics, a unit of Panasonic of Japan. Works with satellite provider Intelsat.
OnAir, a unit of SITA, based in Geneva and works with satellite provider Inmarsat.
(Reporting by Alwyn Scott; Editing by Jonathan Oatis)