shell:$ nslookup -timeout=2 -retry=1 'router-network.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	router-network.com
Address: 104.18.17.91
Name:	router-network.com
Address: 104.18.16.91
Name:	router-network.com
Address: 2606:4700::6812:105b
Name:	router-network.com
Address: 2606:4700::6812:115b