ah662 Air Algiers?
https:// aviability.com/flight-number/flight-ah662-air-algerie
aic-Ailinglaplap Airok, Marshall Islands (AIC)
The first part correlates to an Air Algieres Flight, Aic turns out to be an airport as well as dbc in China, not sure if this is on the right path or not, but interesting that those 3 letter initials match with existing airports