shell:$ nslookup -timeout=2 -retry=1 'irtelcareapp.airtel.cd.fr5.wgserver.net'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	irtelcareapp.airtel.cd.fr5.wgserver.net
Address: 51.159.125.146