1. TLD/net/ja.net
https://www.ja.net/about-janet/about-us
$ dnsq ns ja.net a.gtld-servers.net
2 ja.net: 344 bytes, 1+0+5+10 records, response, noerror query: 2 ja.net authority: ja.net 172800 NS ns0.ja.net authority: ja.net 172800 NS ns1.surfnet.nl authority: ja.net 172800 NS ns1.ja.net authority: ja.net 172800 NS ns2.ja.net authority: ja.net 172800 NS ns4.ja.net additional: ns0.ja.net 172800 A 128.86.1.20 additional: ns0.ja.net 172800 A 193.63.94.20 additional: ns0.ja.net 172800 AAAA 2001:630::8:0:0:0:14 additional: ns0.ja.net 172800 AAAA 2001:630::9:0:0:0:14 additional: ns1.ja.net 172800 A 194.81.227.226 additional: ns1.ja.net 172800 AAAA 2001:630::44:0:0:0:e2 additional: ns2.ja.net 172800 A 193.63.105.17 additional: ns2.ja.net 172800 AAAA 2001:630::45:0:0:0:11 additional: ns4.ja.net 172800 A 193.62.157.66 additional: ns4.ja.net 172800 AAAA 2001:630::47:0:0:0:42
$ dnsq ns ja.net ns0.ja.net
2 ja.net: 388 bytes, 1+5+0+12 records, response, authoritative, noerror query: 2 ja.net answer: ja.net 86400 NS ns0.ja.net answer: ja.net 86400 NS ns1.surfnet.nl answer: ja.net 86400 NS ns1.ja.net answer: ja.net 86400 NS ns4.ja.net answer: ja.net 86400 NS ns2.ja.net additional: ns0.ja.net 86400 A 193.63.94.20 additional: ns0.ja.net 86400 A 128.86.1.20 additional: ns0.ja.net 86400 AAAA 2001:630::9:0:0:0:14 additional: ns0.ja.net 86400 AAAA 2001:630::8:0:0:0:14 additional: ns1.ja.net 86400 A 194.81.227.226 additional: ns1.ja.net 86400 AAAA 2001:630::44:0:0:0:e2 additional: ns1.surfnet.nl 3600 A 192.87.106.101 additional: ns1.surfnet.nl 3600 AAAA 2001:610:1:800a:192:87:106:101 additional: ns2.ja.net 86400 A 193.63.105.17 additional: ns2.ja.net 86400 AAAA 2001:630::45:0:0:0:11 additional: ns4.ja.net 86400 A 193.62.157.66 additional: ns4.ja.net 86400 AAAA 2001:630::47:0:0:0:42