diff --git a/ipv6/us.cidr b/ipv6/us.cidr
index c636dd6ee..a4eba9c86 100644
--- a/ipv6/us.cidr
+++ b/ipv6/us.cidr
@@ -489,7 +489,6 @@
 2600:3000::/29
 2600:3100::/28
 2600:3200::/28
-2600:3300::/24
 2600:3400::/28
 2600:3500::/28
 2600:3800::/28