These entries are queried from radb.net using whois, you can try my project getting these.
:AS29899 route: 159.240.0.0/16 descr: Proxy registration to prevent harm from ARIN-NONAUTH shutdown origin: AS29899 mnt-by: MAINT-AS7034 changed: kennethfinnegan2007 [at] gmail.com 20220404 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2620:37::/48 origin: AS29899 descr: /48 Route-6 Object admin-c: DNSAD306-ARIN tech-c: DNSAD306-ARIN mnt-by: MNT-GMC-5 created: 2023-03-06T18:04:48Z last-modified: 2023-03-06T18:04:48Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2620:112:c000::/40 origin: AS29899 descr: /40 Route-6 Object admin-c: DNSAD306-ARIN tech-c: DNSAD306-ARIN mnt-by: MNT-GMC-5 created: 2023-03-06T18:03:48Z last-modified: 2023-03-06T18:03:48Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source