These entries are queried from radb.net using whois, you can try my project getting these.
:AS55467 route: 203.30.18.0/24 descr: Over the Wire origin: AS55467 notify: noc [at] overthewire.com.au mnt-by: MAINT-OTWN1 changed: noc [at] overthewire.com.au 20170907 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.30.18.0/24 origin: AS55467 descr: Access Testing Pty Ltd LEVEL 7 35 BOUNDARY STREET mnt-by: MAINT-AU-ACCESS last-modified: 2017-09-11T22:02:45Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:df2:4900::/48 descr: Over the Wire origin: AS55467 notify: noc [at] overthewire.com.au mnt-by: MAINT-OTWN1 changed: noc [at] overthewire.com.au 20170926 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source