shell:$ nslookup -timeout=2 -retry=1 'ns-641.awsdns-16.net'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	ns-641.awsdns-16.net
Address: 205.251.194.129
Name:	ns-641.awsdns-16.net
Address: 2600:9000:5302:8100::1