diff --git a/ipv6/bd.cidr b/ipv6/bd.cidr
index edbeab4b6..27911d42c 100644
--- a/ipv6/bd.cidr
+++ b/ipv6/bd.cidr
@@ -553,6 +553,7 @@
 2001:df4:31c0::/48
 2001:df4:3340::/48
 2001:df4:3380::/48
+2001:df4:33c0::/48
 2001:df4:3800::/48
 2001:df4:3c00::/48
 2001:df4:3f80::/48