Fixes #6632

netbox/ipam/lookups.py

@@ -151,7 +151,7 @@ class NetHostContained(Lookup):
         lhs, lhs_params = self.process_lhs(qn, connection)
         rhs, rhs_params = self.process_rhs(qn, connection)
         params = lhs_params + rhs_params
-        return 'CAST(HOST(%s) AS INET) << %s' % (lhs, rhs), params
+        return 'CAST(HOST(%s) AS INET) <<= %s' % (lhs, rhs), params
 
 
 class NetFamily(Transform):