Different airlines use different tools, here is one that can be used by anyone
AUGUR RAIM Prediction
Ensure your selection matches the requirements for your aircraft type and flight, run the report and use it.
Airlines may only provide you with best capability, ANP AR would require this detailed information to be made available.
If outage occur, you can always run a lower criteria requirement if an approach allows you to use it, the minima will likely then be different and planning may need to take this into account