shell:$ nslookup -timeout=2 -retry=1 'www.unefon.com.mx'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
www.unefon.com.mx	canonical name = unefon.com.mx.
Name:	unefon.com.mx
Address: 140.84.173.155