These entries are queried from radb.net using whois, you can try my project getting these.
:AS51131 route: 185.205.216.0/22 origin: AS51131 mnt-by: CREW-MNT mnt-by: de-as9211-1-mnt mnt-by: NWORK-MNT created: 2021-04-20T13:47:40Z last-modified: 2021-04-20T13:47:40Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: valid route6: 2a0b:cc0::/32 origin: AS51131 mnt-by: de-as9211-1-mnt mnt-by: NWORK-MNT created: 2021-05-04T09:21:00Z last-modified: 2021-05-04T09:21:00Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: valid