These entries are queried from radb.net using whois, you can try my project getting these.
:AS59368 route6: 2400:1bc0::/32 descr: Over the Wire origin: AS59368 notify: noc [at] overthewire.com.au mnt-by: MAINT-OTWN1 changed: noc [at] overthewire.com.au 20161123 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source