shell:$ nslookup -timeout=2 -retry=1 'ns-766.awsdns-31.net'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	ns-766.awsdns-31.net
Address: 205.251.194.254
Name:	ns-766.awsdns-31.net
Address: 2600:9000:5302:fe00::1