shell:$ nslookup -timeout=2 -retry=1 'app.tigo.com.gt'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
app.tigo.com.gt	canonical name = lync.tigo.com.gt.
Name:	lync.tigo.com.gt
Address: 200.49.163.43