shell:$ nslookup -timeout=2 -retry=1 'smartfren.id'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	smartfren.id
Address: 104.21.81.151
Name:	smartfren.id
Address: 172.67.162.63
Name:	smartfren.id
Address: 2606:4700:3033::6815:5197
Name:	smartfren.id
Address: 2606:4700:3033::ac43:a23f