diff --git a/ipv6/ca.cidr b/ipv6/ca.cidr
index 7180d66f8..cf082e25b 100644
--- a/ipv6/ca.cidr
+++ b/ipv6/ca.cidr
@@ -684,6 +684,7 @@
 2607:7b00::/32
 2607:7e00::/32
 2607:8240::/32
+2607:83c0::/32
 2607:8480::/32
 2607:8700::/32
 2607:8880::/32