I was informed by Thingstream,
that the correction flow through L band will be terminatrd by end of 2025.
What shall I do with my projects and spare parts. I use the sparkfun combo board
Greetings
Bernhard Graf
This thread has essentially of of the info we know of so far Options for L-Band on RTK Facet - #5 by rftop
The L-Band devices will still work great as a Network Rover (RTN) where cellular service is available for NTRIP, the typical local Base/Rover scenario with radio link, or for Static Sessions.
I know that’s not much of a consolation prize for L-Band devices, but it’s the only use that I know of at the moment.
Another vendor might lease bandwidth on the Inmarsat Bird and provide a cost effective plan that we can use ? 
But we should consider that if ThingStream couldn’t make it financially viable even with the existing terrestrial network feeding their SSR Model… it’s optimistic for someone else, but who knows?