109.203.124.66

• RIPE4 66.124.203.109.in-addr.arpa
• Records pointing here:
• Adns2.eukservers.com
• Adns2.whukns.com
• Adns2.whukhost.com expired since 55 minutes
• Ans2.theukhost.net expired since 12 hours, 41 minutes
• Adns2.eukdns.com expired since 23 hours, 26 minutes
• Adns2.eukns.com expired since 1 day, 2 hours
• Adns2.redbackinternet.net expired since 1 day, 12 hours
• Adns2.eukhosting.net expired since 2 days, 13 hours
• Adns2.ukclouddns.com expired since 2 days, 15 hours

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