shell:$ nslookup -timeout=2 -retry=1 'asia.pool.ntp.org'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	asia.pool.ntp.org
Address: 27.102.137.217
Name:	asia.pool.ntp.org
Address: 160.187.147.197
Name:	asia.pool.ntp.org
Address: 165.154.228.19
Name:	asia.pool.ntp.org
Address: 162.159.200.1