diff --git a/ipv6/us.cidr b/ipv6/us.cidr
index 39fff98a2..efeac02a5 100644
--- a/ipv6/us.cidr
+++ b/ipv6/us.cidr
@@ -1028,6 +1028,8 @@
 2602:81b:8000::/44
 2602:81b:9000::/44
 2602:81b:a000::/44
+2602:f63a::/40
+2602:f63b::/40
 2602:f63c::/40
 2602:f63d::/40
 2602:f63e::/40