If ASL blocks anything, it will log that action. Just log into the ASL GUI, in the Security Events window change the drop down in the "Blocked IP Addresses" line to "all blocks" and type in the IP address that was blocked.
If you want to find out if ASL is currently shunning, or firewalling off an IP address, in the Security Events window change the drop down in the "blocked IP Addresses" line to "current blocks" and type in the IP address that was blocked. Any IP address that ASL is currently blocking will be listed.
If you have blacklisted an IP, then at the top of the screen click on "ASL", select blocking and this will open the Blocking window. Then click on the Blacklist tab. Note: ASL does not add IP addresses to the blacklist. The blacklist is manually configured by the ASL user.
And if you are using the geoblocking features, check the Geoblocking window for the list of countries you have configured ASL to block.
If you are unable to log into the ASL web console, you can also check the ASL active response log. All shuns are logged by ASL. Please see this FAQ for further information: