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

Non-authoritative answer:
mtalk.google.com	canonical name = mobile-gtalk.l.google.com.
Name:	mobile-gtalk.l.google.com
Address: 74.125.197.188
Name:	mobile-gtalk.l.google.com
Address: 2607:f8b0:4020:c07::bc