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

Non-authoritative answer:
login.microsoftonline.com	canonical name = login.mso.msidentity.com.
login.mso.msidentity.com	canonical name = ak.privatelink.msidentity.com.
ak.privatelink.msidentity.com	canonical name = www.tm.a.prd.aadg.akadns.net.
Name:	www.tm.a.prd.aadg.akadns.net
Address: 40.126.28.11
Name:	www.tm.a.prd.aadg.akadns.net
Address: 20.190.135.6
Name:	www.tm.a.prd.aadg.akadns.net
Address: 20.190.135.7
Name:	www.tm.a.prd.aadg.akadns.net
Address: 20.190.135.4
Name:	www.tm.a.prd.aadg.akadns.net
Address: 40.126.28.22
Name:	www.tm.a.prd.aadg.akadns.net
Address: 40.126.28.21
Name:	www.tm.a.prd.aadg.akadns.net
Address: 20.190.135.18
Name:	www.tm.a.prd.aadg.akadns.net
Address: 40.126.7.32
Name:	www.tm.a.prd.aadg.akadns.net
Address: 2603:1037:1:148::b
Name:	www.tm.a.prd.aadg.akadns.net
Address: 2603:1036:3000:148::2
Name:	www.tm.a.prd.aadg.akadns.net
Address: 2603:1037:1:148::e
Name:	www.tm.a.prd.aadg.akadns.net
Address: 2603:1037:1:148::c
Name:	www.tm.a.prd.aadg.akadns.net
Address: 2603:1036:3000:148::7
Name:	www.tm.a.prd.aadg.akadns.net
Address: 2603:1036:3000:148::1
Name:	www.tm.a.prd.aadg.akadns.net
Address: 2603:1037:1:148::10
Name:	www.tm.a.prd.aadg.akadns.net
Address: 2603:1036:3000:148::a