These entries are queried from radb.net using whois, you can try my project getting these.
:AS394823 route: 198.52.40.0/24 origin: AS394823 descr: Taylor Farms IP Block admin-c: BRIST23-ARIN tech-c: BRIST23-ARIN mnt-by: MNT-TFF-5 created: 2022-08-25T19:41:02Z last-modified: 2022-08-25T19:41:02Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.238.108.0/24 origin: AS394823 descr: Taylor Farms IP Block admin-c: BRIST23-ARIN tech-c: BRIST23-ARIN mnt-by: MNT-TFF-5 created: 2023-03-27T21:52:35Z last-modified: 2023-03-27T21:52:35Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source