Originally Posted by
songsc
Something like AC868A is considered a new flight number, that's why you saw it in the baggage claim area, and likely that's why the phone agent could not find "AC868".
Flight numbers like AC2068 are usually used for flights with delayed departure till next day.
The problem is, the flight number update was not done correctly in the system.
I've seen 2xxx used for ferry flights, twinned flights, canceled and "reincarnated" flight departing same day, etc.
This "same" two flight numbers arriving on the same day has happened to me several times. No issues to report.