diff --git a/ipv6/in.cidr b/ipv6/in.cidr
index ce10e75c6..589e90359 100644
--- a/ipv6/in.cidr
+++ b/ipv6/in.cidr
@@ -179,6 +179,8 @@
 2001:df0:acc0::/48
 2001:df0:ae40::/48
 2001:df0:b100::/48
+2001:df0:b1c0::/48
+2001:df0:b240::/48
 2001:df0:ba00::/48
 2001:df0:c080::/48
 2001:df0:c400::/48