diff --git a/ipv6/br.cidr b/ipv6/br.cidr
index 2beb9c4d3..1d0a11f23 100644
--- a/ipv6/br.cidr
+++ b/ipv6/br.cidr
@@ -4344,7 +4344,6 @@
 2804:445c::/32
 2804:4460::/32
 2804:4464::/32
-2804:4468::/32
 2804:446c::/32
 2804:4470::/32
 2804:4474::/32
@@ -4905,7 +4904,6 @@
 2804:4de0::/32
 2804:4de4::/32
 2804:4de8::/32
-2804:4dec::/32
 2804:4df0::/32
 2804:4df4::/32
 2804:4df8::/32
diff --git a/ipv6/mx.cidr b/ipv6/mx.cidr
index 96ba6d788..f76b429d5 100644
--- a/ipv6/mx.cidr
+++ b/ipv6/mx.cidr
@@ -74,6 +74,7 @@
 2801:c4:27a::/48
 2801:c4:280::/44
 2801:c4:290::/48
+2801:c4:297::/48
 2801:c4:300::/40
 2801:c4:1000::/36
 2801:c5::/32