These entries are queried from radb.net using whois, you can try my project getting these.
:AS34663 route: 85.159.96.0/21 origin: AS34663 mnt-by: BELASTINGDIENST created: 2018-02-01T06:38:22Z last-modified: 2018-02-01T06:38:22Z 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 route: 185.94.120.0/22 origin: AS34663 mnt-by: BELASTINGDIENST created: 2017-12-03T09:32:50Z last-modified: 2017-12-03T09:32:50Z 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: 2a04:9a01:1000::/36 descr: Route object Belastingdienst 2a04:9a01:1000::/36 origin: AS34663 mnt-by: BELASTINGDIENST created: 2019-12-19T11:57:23Z last-modified: 2019-12-19T11:57:23Z 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