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

Non-authoritative answer:
login.live.com	canonical name = login.msa.msidentity.com.
login.msa.msidentity.com	canonical name = www.tm.lg.prod.aadmsa.akadns.net.
www.tm.lg.prod.aadmsa.akadns.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: 40.126.28.18
Name:	www.tm.v4.a.prd.aadg.trafficmanager.net
Address: 40.126.28.20
Name:	www.tm.v4.a.prd.aadg.trafficmanager.net
Address: 40.126.28.22
Name:	www.tm.v4.a.prd.aadg.trafficmanager.net
Address: 20.190.135.5
Name:	www.tm.v4.a.prd.aadg.trafficmanager.net
Address: 20.190.135.19
Name:	www.tm.v4.a.prd.aadg.trafficmanager.net
Address: 40.126.28.13
Name:	www.tm.v4.a.prd.aadg.trafficmanager.net
Address: 20.190.135.18
Name:	www.tm.v4.a.prd.aadg.trafficmanager.net
Address: 40.126.28.14