These entries are queried from radb.net using whois, you can try my project getting these.
:AS40583 route: 198.236.184.0/21 origin: AS40583 descr: 400 East Scenic Drive, Suite 207 The Dalles OR 97058 United States member-of: RS-CTA admin-c: NOC11154-ARIN tech-c: FEILB-ARIN tech-c: NOC11154-ARIN mnt-by: MNT-CGESD-1 created: 2020-06-24T15:28:17Z last-modified: 2022-02-01T23:59:25Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2606:d840::/32 origin: AS40583 descr: 400 East Scenic Drive, Suite 207 The Dalles OR 97058 United States admin-c: NOC11154-ARIN tech-c: FEILB-ARIN tech-c: NOC11154-ARIN mnt-by: MNT-CGESD-1 created: 2023-10-25T04:48:09Z last-modified: 2023-10-25T04:48:09Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source