diff --git a/ipv6/mx.cidr b/ipv6/mx.cidr
index d4e4318c6..feb0e2f16 100644
--- a/ipv6/mx.cidr
+++ b/ipv6/mx.cidr
@@ -180,6 +180,5 @@
 2806:440::/31
 2806:442::/32
 2806:444::/30
-2806:448::/31
-2806:44a::/32
+2806:448::/30
 2806:1000::/24