shell:$ nslookup -timeout=2 -retry=1 'call2friends.com'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	call2friends.com
Address: 104.21.81.169
Name:	call2friends.com
Address: 172.67.162.226
Name:	call2friends.com
Address: 2606:4700:3036::ac43:a2e2
Name:	call2friends.com
Address: 2606:4700:3031::6815:51a9