shell:$ nslookup -timeout=2 -retry=1 'whois.afrinic.net'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
whois.afrinic.net	canonical name = whois-public.afrinic.net.
Name:	whois-public.afrinic.net
Address: 196.192.115.21
Name:	whois-public.afrinic.net
Address: 196.216.2.20
Name:	whois-public.afrinic.net
Address: 196.216.2.21
Name:	whois-public.afrinic.net
Address: 196.192.115.22
Name:	whois-public.afrinic.net
Address: 2001:42d0:2:601::21
Name:	whois-public.afrinic.net
Address: 2001:42d0:0:201::21
Name:	whois-public.afrinic.net
Address: 2001:42d0:2:601::22
Name:	whois-public.afrinic.net
Address: 2001:42d0:0:201::20