If you don't mind my asking, how can one deduce the specific exchange an address belongs to?
I'm aware it's possible to use available blockchain activity to recognize addresses belonging to exchanges and individuals alike, but I'm not sure how to identify which particular exchange the address belongs to.
As an individual, the only way is to deposit coins to that exchange and just trace their journey, at least they will at one point link to the hot wallet, and from there you can start guessing if larger fixed sums of coins get on regular interval moved to another address that that might be their cold wallet. But once you have data from multiple sources and multiple users and you can start making differences between transfers to cold wallets to other exchanges (that also happen all the time) people can start pinpointing those wallets more accurately.
Tracking is the best way, those coins have to go somewhere and it's not like an exchange will use a tumbler to hide the traces.