diff --git a/ipv6/us.cidr b/ipv6/us.cidr
index af86c8e82..4da7242dc 100644
--- a/ipv6/us.cidr
+++ b/ipv6/us.cidr
@@ -1013,6 +1013,7 @@
 2602:81a:c000::/44
 2602:81a:d000::/44
 2602:81a:e000::/44
+2602:f722::/40
 2602:f723::/36
 2602:f724::/36
 2602:f725::/40