add new address to blackhole

update_hosts.py

@@ -24,6 +24,7 @@ blackhole = (
     '200:2:5d2e:859::',
     '200:2:9f6a:794b::',
     '200:2:cb62:741::',
+    '200:2:cc9b:953e::',
     '200:2:f3b9:bb27::',
     '2001::212',
     '2001:da8:112::21ae',