Do you use any kind of flight numbering scheme or just sequentially? I’ve done some reading on how airlines do it in the real world, but it seems like it would be a lot of work to keep it consistent once you get into the thousands of flights a day.
just an example
100-149: Hub A, direction east
150-199: Hub A, direction west
200-269: Hub B, short-haul flights
270-299: Hub B, long-haul flights
Whats the use of it? I have 6800 flightnumbers, you cant manage them with a specific system. Just use those that are available; not specific numbers for a special hub or direction.