shell:$ nslookup -timeout=2 -retry=1 'www.thnic.co.th'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
www.thnic.co.th	canonical name = www.thnic.in.th.
Name:	www.thnic.in.th
Address: 103.206.25.44
Name:	www.thnic.in.th
Address: 2001:df4:b881::44