By the way, why on earth did you let them call your airport CAX?
I know a bit about airport codes.
CA...Carlisle..the town/city/region the airport chooses to use as its name
..X... because someone else got the R first.
In this case, Caribou, in Maine, USA.
Doesn’t always work like this though, Orlando International in Florida has the code MCO, because it used to be a military airfield known as McCoy Field.