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-OKC-OFHFC-72-194-132-0 (NET-72-194-132-0-1) 72.194.132.0 - 72.194.135.255