diff --git a/ipv6/bd.cidr b/ipv6/bd.cidr
index 475d43612..2234ad763 100644
--- a/ipv6/bd.cidr
+++ b/ipv6/bd.cidr
@@ -845,6 +845,7 @@
 2407:e80::/32
 2407:1040::/32
 2407:1500::/32
+2407:1a40::/32
 2407:1f80::/32
 2407:2680::/32
 2407:2b80::/32