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

Non-authoritative answer:
join.skype.com	canonical name = join-skype-com.s-0006.s-msedge.net.
join-skype-com.s-0006.s-msedge.net	canonical name = s-0006.s-msedge.net.
Name:	s-0006.s-msedge.net
Address: 52.113.194.133
Name:	s-0006.s-msedge.net
Address: 2620:1ec:42::133