Hah. The Y prefix alone should've been a tip off. I don't know a darned thing about air travel but I know Canada is stuck with the Y.
We also have airports with "CZ" (eg. CZBB).
I am not sure what the difference (if any) between CZ vs. CY codes is. Probably just sticking with convention (begin with Y or Z because everyone else does).
[1] https://en.wikipedia.org/wiki/International_Civil_Aviation_O...
https://en.wikipedia.org/wiki/List_of_airports_by_IATA_code:...
But Y is heavily Canadian. We should all just start our own airport. Sounds like a good way to learn about naming. I imagine we will want an airport code staring with YC, so it'll have to be in Canada :P