diff --git a/ipv6/br.cidr b/ipv6/br.cidr
index 10130494..fb0ffbf8 100644
--- a/ipv6/br.cidr
+++ b/ipv6/br.cidr
@@ -537,6 +537,7 @@
 2801:81:d0::/48
 2801:81:e0::/48
 2801:81:f0::/48
+2801:81:100::/48
 2801:82::/32
 2801:84::/32
 2801:86::/32