Cox Communications Inc. NETBLK-COX-ATLANTA-11 (NET-72-192-0-0-1) 72.192.0.0 - 72.223.255.255 Cox Communications Inc. NETBLK-PH-CBS-72-212-128-0 (NET-72-212-128-0-1) 72.212.128.0 - 72.212.159.255