diff --git a/ipv6/au.cidr b/ipv6/au.cidr
index 7a1442f6..137350cd 100644
--- a/ipv6/au.cidr
+++ b/ipv6/au.cidr
@@ -464,6 +464,7 @@
 2001:df5:1200::/48
 2001:df5:1300::/48
 2001:df5:1680::/48
+2001:df5:1c80::/48
 2001:df5:2200::/48
 2001:df5:2b00::/48
 2001:df5:2d00::/48