These entries are queried from radb.net using whois, you can try my project getting these.
:AS57075 route: 185.104.130.0/23 origin: AS57075 mnt-by: nl-slashme-2-mnt mnt-by: nl-slashme-1-mnt created: 2020-06-02T14:38:14Z last-modified: 2020-06-02T14:38:14Z 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: 2a06:3084::/30 origin: AS57075 mnt-by: nl-slashme-2-mnt mnt-by: nl-slashme-1-mnt created: 2020-05-26T09:54:09Z last-modified: 2020-05-26T09:54:09Z 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