Originally Posted by
a330300
Upon more digging, looks like those addresses were for Air World, who was a GSA (General Sales Agent) that represented Garuda and other airlines in the US. It doesn't look like those offices are open anymore.
Here's a
2015 sales kit that still has those listed, along with other GA offices.
It looks like several other airlines also use the Encino, CA and Houston, TX addresses, so those might still be open. The NYC and Chicago addresses appear to have changed, or at least other airlines that share the same CA/TX addresses have different addresses listed in NYC and Chicago. If someone really has a lot of time on their hands, they could try some of those other addresses, I suppose.