shell:$ nslookup -timeout=2 -retry=1 'entreprisebilling.airtel.cd'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
entreprisebilling.airtel.cd	canonical name = 6sojbfs.ng.impervadns.net.
Name:	6sojbfs.ng.impervadns.net
Address: 45.60.135.92