shell:$ nslookup -timeout=2 -retry=1 'airtelcareapp.airtel.cd.nus5.dnstt.org'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	airtelcareapp.airtel.cd.nus5.dnstt.org
Address: 172.234.24.211
Name:	airtelcareapp.airtel.cd.nus5.dnstt.org
Address: 172.239.57.117