shell:$ nslookup -timeout=2 -retry=1 'ns-164.awsdns-20.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	ns-164.awsdns-20.com
Address: 205.251.192.164
Name:	ns-164.awsdns-20.com
Address: 2600:9000:5300:a400::1