diff --git a/bad-networks.txt b/bad-networks.txt
index 6f79bdd..75e9497 100644
--- a/bad-networks.txt
+++ b/bad-networks.txt
@@ -7,3 +7,5 @@
 87.246.7.0/24
 212.70.149.0/24
 45.125.66.0/24
+217.66.152.0/21
+