These entries are queried from radb.net using whois, you can try my project getting these.
:AS64209 route: 136.175.88.0/22 origin: AS64209 mnt-by: MNT-DL-781 source: ARIN tech-c: DBOPS-ARIN admin-c: DBOPS-ARIN created: 2020-09-30T16:57:06Z last-modified: 2020-10-02T07:36:36Z descr: MNT-DL-781 route 136.175.088.000/22 AS64209 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 136.175.88.0/24 origin: AS64209 admin-c: DBOPS-ARIN tech-c: DBOPS-ARIN mnt-by: MNT-DL-781 created: 2021-01-29T11:32:23Z last-modified: 2021-01-29T11:32:23Z source: ARIN descr: MNT-DL-781 route 136.175.088.000/24 AS64209 rpki-ov-state: valid route: 136.175.89.0/24 origin: AS64209 admin-c: DBOPS-ARIN tech-c: DBOPS-ARIN mnt-by: MNT-DL-781 created: 2021-01-29T11:32:44Z last-modified: 2021-01-29T11:32:44Z source: ARIN descr: MNT-DL-781 route 136.175.089.000/24 AS64209 rpki-ov-state: valid route: 136.175.90.0/24 origin: AS64209 admin-c: DBOPS-ARIN tech-c: DBOPS-ARIN mnt-by: MNT-DL-781 created: 2021-01-29T11:33:15Z last-modified: 2021-01-29T11:33:15Z source: ARIN descr: MNT-DL-781 route 136.175.090.000/24 AS64209 rpki-ov-state: valid route: 136.175.91.0/24 origin: AS64209 admin-c: DBOPS-ARIN tech-c: DBOPS-ARIN mnt-by: MNT-DL-781 created: 2021-01-29T11:33:40Z last-modified: 2021-01-29T11:33:40Z source: ARIN descr: MNT-DL-781 route 136.175.091.000/24 AS64209 rpki-ov-state: valid