diff --git a/ipv6/us.cidr b/ipv6/us.cidr
index 0817569d..14838dcb 100644
--- a/ipv6/us.cidr
+++ b/ipv6/us.cidr
@@ -578,6 +578,7 @@
 2602:808:3000::/44
 2602:808:4000::/44
 2602:808:5000::/44
+2602:fcec::/36
 2602:fced::/36
 2602:fcee::/36
 2602:fcef::/36
@@ -2858,6 +2859,7 @@
 2606:780::/32
 2606:7c0::/32
 2606:800::/32
+2606:840::/32
 2606:900::/32
 2606:a00::/32
 2606:b00::/32