These entries are queried from radb.net using whois, you can try my project getting these.
:AS38023 route: 141.193.21.0/24 origin: AS38023 descr: 720 University Ave PO Box 35765 Syracuse NY 13235 United States admin-c: ZENGH-ARIN tech-c: NLN2-ARIN mnt-by: MNT-NRL-25 created: 2024-04-22T14:21:35Z last-modified: 2024-04-22T14:21:35Z source: ARIN rpki-ov-state: valid route6: 2602:feda:e0::/43 origin: AS38023 descr: MNT-MCHL-4 admin-c: KOBAY19-ARIN tech-c: KOBAY19-ARIN mnt-by: MNT-MCHL-4 created: 2024-04-21T22:01:29Z last-modified: 2024-04-21T22:01:29Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2602:feda:f4::/48 origin: AS38023 mnt-by: MNT-MCHL-4 tech-c: KOBAY19-ARIN admin-c: KOBAY19-ARIN source: ARIN created: 2020-07-10T17:47:38Z last-modified: 2020-07-10T17:47:38Z descr: MNT-MCHL-4 route 2602:FEDA:00F4:0000:0000:0000:0000:0000/48 AS38023 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source