72.8.161.13

• RIPE4 13.161.8.72.in-addr.arpa
• Records pointing here:
• Awww.coronadns-03.com
• Acoronadns-04.com expired since 20 hours, 50 minutes
• Acoronadns-01.com expired since 1 day, 4 hours
• Acoronadns-02.com expired since 1 day, 6 hours
• Awww.coronadns-05.com expired since 1 day, 9 hours
• Awww.coronadns-01.com expired since 1 day, 10 hours
• Awww.coronadns-04.com expired since 1 day, 11 hours
• Acoronadns-05.com expired since 1 day, 15 hours
• Acoronadns-03.com expired since 4 days, 10 hours
• Awww.coronadns-02.com expired since 3 weeks, 2 days

This top-level domain has no publically available whois server. Try going to www.nic.arpa.