shell:$ nslookup -timeout=2 -retry=1 'contoso-my.sharepoint.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
contoso-my.sharepoint.com	canonical name = target.microsoft.com.
target.microsoft.com	canonical name = microsoftmscompoc.tt.omtrdc.net.
Name:	microsoftmscompoc.tt.omtrdc.net
Address: 63.140.39.146
Name:	microsoftmscompoc.tt.omtrdc.net
Address: 63.140.38.38
Name:	microsoftmscompoc.tt.omtrdc.net
Address: 63.140.38.116
Name:	microsoftmscompoc.tt.omtrdc.net
Address: 63.140.39.87
Name:	microsoftmscompoc.tt.omtrdc.net
Address: 63.140.39.145
Name:	microsoftmscompoc.tt.omtrdc.net
Address: 63.140.38.61
Name:	microsoftmscompoc.tt.omtrdc.net
Address: 63.140.39.214
Name:	microsoftmscompoc.tt.omtrdc.net
Address: 63.140.39.254
Name:	microsoftmscompoc.tt.omtrdc.net
Address: 63.140.39.25
Name:	microsoftmscompoc.tt.omtrdc.net
Address: 63.140.38.59