Rackspace Hosting RACKS-8-NET-4 (NET-50-56-152-0-1) 50.56.152.0 - 50.57.239.255 Cloud Loadbalancing as a Service-LBaaS (ORD) RACKS-8-1322005456031738 (NET-50-57-214-0-1) 50.57.214.0 - 50.57.214.255