In your “Flight Track Log” you have a column for “Reporting Facility”.
(see for example: flightaware.com/live/flight/UAL9 … R/tracklog)
I’ve seen a number of different well known reporting facilities listed in this field such as gandor center, moncton center and montreal center.
But I’ve also seen listings such as: FlightAware, FlightAware UK, FlightAware Transoceanic, FlightAware Approximate.
Where did the data actually come from when the reporting facility is one of these?
Is this data reliable?