Fleet Xpress operates as a fully managed service, powered by Inmarsat’s Ka-band Global Xpress network, enabling customers to increase their bandwidth as their digital ecosystem evolves.

Source: https://gcaptain.com/inmarsat-maritime-launches-fleet-reach-bringing-seamless-connectivity-to-ships-from-sea-to-port/

The FCC previously authorized SpaceX to launch and operate roughly 4,400 first-generation Ka-band and Ku-band Starlink spacecraft that SpaceX started launching in 2019.

Source: https://spaceflightnow.com/2023/06/23/falcon-9-starlink-5-12-coverage/

“We will have much higher bandwidth at each gateway than we were able to achieve with just the Ka-band at those gateways” for Jupiter 1 and Jupiter 2, said Stan Kay, Hughes Network Systems vice president of advanced development.

Source: https://spacenews.com/hughes-jupiter-3-preps-for-launch/