These entries are queried from radb.net using whois, you can try my project getting these.
:AS30462 route: 136.175.52.0/22 origin: AS30462 descr: NG-136.175.52.0/22 mnt-by: MNT-NIC-45 source: ARIN tech-c: RPP5-ARIN admin-c: RPP5-ARIN created: 2020-10-21T19:24:03Z last-modified: 2020-10-21T19:25:13Z rpki-ov-state: valid route: 207.45.80.0/20 origin: AS30462 mnt-by: MNT-NIC-45 descr: NG-207.45.80.0/20 tech-c: RPP5-ARIN admin-c: RPP5-ARIN source: ARIN created: 2020-08-31T16:06:35Z last-modified: 2020-08-31T16:06:35Z rpki-ov-state: valid route6: 2602:ffb4::/36 origin: AS30462 mnt-by: MNT-NIC-45 descr: NG-2602:FFB4::/36 tech-c: RPP5-ARIN admin-c: RPP5-ARIN source: ARIN created: 2020-08-31T16:07:25Z last-modified: 2020-08-31T16:07:25Z rpki-ov-state: valid