These entries are queried from radb.net using whois, you can try my project getting these.
:AS400132 route: 23.129.120.0/24 origin: AS400132 descr: MNT-RTU-24 route 023.129.120.000/24 AS400132 admin-c: LAGEE-ARIN tech-c: LAGEE-ARIN mnt-by: MNT-RTU-24 created: 2022-02-17T20:05:52Z last-modified: 2022-12-05T18:44:08Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 67.212.127.0/24 origin: AS400132 descr: MNT-RTU-24 route 067.212.127.000/24 AS400132 admin-c: LAGEE-ARIN tech-c: LAGEE-ARIN mnt-by: MNT-RTU-24 created: 2022-02-18T15:25:39Z last-modified: 2022-02-18T15:25:39Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 69.57.198.0/23 origin: AS400132 descr: MNT-RTU-24 route 069.57.198.000/23 AS400132 admin-c: LAGEE-ARIN tech-c: LAGEE-ARIN mnt-by: MNT-RTU-24 created: 2022-02-18T15:16:52Z last-modified: 2022-02-18T15:16:52Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source