shell:$ nslookup -timeout=2 -retry=1 'recharge.airtel.lk'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
recharge.airtel.lk	canonical name = iwzd2ex.ng.impervadns.net.
Name:	iwzd2ex.ng.impervadns.net
Address: 45.60.150.45