/msg $C BANS <#channel> [mask|nick]
This command lists all permanent and timed bans in the channel.
If a nickname is specified, lists any bans that visibly match that user.
If a hostmask with no wildcards is specified, lists any bans that match that hostmask.
If a hostmask with wildcards is specified, lists any bans included in that mask.
$uSee Also:$u addban, delban, mdelban