Question and response
Question
dig ns21.j.centralnic-dns.com. AAAA
Answer
ns21.j.centralnic-dns.com. 604800 AAAA 2a04:2b00:14dd:0:0:0:0:21
Authority
centralnic-dns.com. 604800 NS ns4.centralnic.net.
centralnic-dns.com. 604800 NS ns3.centralnic.net.
centralnic-dns.com. 604800 NS ns2.centralnic.net.
centralnic-dns.com. 604800 NS ns1.centralnic.net.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0