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

Non-authoritative answer:
login.live.com	canonical name = login.msa.msidentity.com.
login.msa.msidentity.com	canonical name = www.tm.lg.prod.aadmsa.trafficmanager.net.
www.tm.lg.prod.aadmsa.trafficmanager.net	canonical name = prdv4a.aadg.msidentity.com.
prdv4a.aadg.msidentity.com	canonical name = www.tm.v4.a.prd.aadg.trafficmanager.net.
Name:	www.tm.v4.a.prd.aadg.trafficmanager.net
Address: 40.126.28.12
Name:	www.tm.v4.a.prd.aadg.trafficmanager.net
Address: 40.126.28.21
Name:	www.tm.v4.a.prd.aadg.trafficmanager.net
Address: 20.190.135.6
Name:	www.tm.v4.a.prd.aadg.trafficmanager.net
Address: 40.126.28.19
Name:	www.tm.v4.a.prd.aadg.trafficmanager.net
Address: 40.126.28.14
Name:	www.tm.v4.a.prd.aadg.trafficmanager.net
Address: 20.190.135.7
Name:	www.tm.v4.a.prd.aadg.trafficmanager.net
Address: 20.190.135.4
Name:	www.tm.v4.a.prd.aadg.trafficmanager.net
Address: 20.190.135.18