By default your blacklist monitors are ordered by the time they were added into your account, in a descending order (newest at the top).
But you can also order them by IP Address ascending
Or by Report descending, if you wish to see the top blacklisted IPs really quick
Or you can order them by the last time they’ve been checked, ascending, to see which IPs were checked recently
Your sorting preferences will be persistent and will be saved even if you navigate away from the blacklist monitors page.