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IP
Nmap scan report for ns5.blackrock.com (23.211.132.67) Host is up (0.011s latency). rDNS record for 23.211.132.67: a16-67.akam.net Not shown: 999 filtered tcp ports (no-response) PORT STATE SERVICE 53/tcp open domain Nmap done: 1 IP address (1 host up) scanned in 4.56 seconds