Don't mention the volumes and all exchanges which delisted Bytball and then already rebranded Obyte.
Which exchanges delisted? I know only Changelly swapping site and Cryptopia, which delisted themselves from crypto by getting hacked (probably through some other random wallet that they didn't containerize - rookie mistake). Now GBYTE is on SimpleSwap (ostable.org/buy also uses it) and StealthEX for swapping with other altcoins.
There was also Cryptofacil exchange, but they didn't delist GBYTE, they closed themselves down.