shell:$ nslookup -timeout=2 -retry=1 'auth.tigo.com'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
auth.tigo.com	canonical name = auth-tigo-com.tigocloud.net.
auth-tigo-com.tigocloud.net	canonical name = auth.tigo.com.cdn.cloudflare.net.
Name:	auth.tigo.com.cdn.cloudflare.net
Address: 148.227.167.33