shell:$ nslookup -timeout=2 -retry=1 'api.gcc.teams.microsoft.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
api.gcc.teams.microsoft.com	canonical name = teams-gcch.usgovtrafficmanager.net.
teams-gcch.usgovtrafficmanager.net	canonical name = skypegov.aksroxy.azureedge.us.
skypegov.aksroxy.azureedge.us	canonical name = afd-aksroxy-fairfax-skype-default-atm.usgovtrafficmanager.net.
afd-aksroxy-fairfax-skype-default-atm.usgovtrafficmanager.net	canonical name = eafd-ffgov1p-phxr9b2-roxy-default-skype.aksroxy.azureedge.us.
Name:	eafd-ffgov1p-phxr9b2-roxy-default-skype.aksroxy.azureedge.us
Address: 52.127.92.109
Name:	eafd-ffgov1p-phxr9b2-roxy-default-skype.aksroxy.azureedge.us
Address: 2001:489a:2240::