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.
My best guess is that some exchanges have addresses which have been made public at different times.
This is a Coinbase wallet: https://bitinfocharts.com/de/bitcoin/wallet/Coinbase
It's identified because people transfer their Bitcoin to Coinbase regularly, and so you can track the amounts.
1LQoWist8KkaUXSPKZHNvEyfrEkPHzSsCd is likely a Coinbase wallet because it is unlikely that they would transfer $3B to another group, especially at such regular steps and in such large amounts. This is not 100% confirmed, but a very good guess. Nearly all of those transactions are immediately from the Coinbase wallet or <2 jumps away.