These entries are queried from radb.net using whois, you can try my project getting these.
:AS57227 route: 81.24.85.0/24 descr: SABNET LTD origin: AS57227 mnt-by: SUBNET05-MNT created: 2018-12-11T11:24:09Z last-modified: 2018-12-11T11:24:09Z 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 route: 81.24.88.0/21 origin: AS57227 mnt-by: SUBNET05-MNT created: 2018-02-20T13:36:34Z last-modified: 2018-02-20T13:36:34Z 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: 81.163.32.0/19 descr: Route origin: AS57227 mnt-by: SUBNET05-MNT created: 2011-09-07T09:36:13Z last-modified: 2011-09-07T09:36:13Z 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: 81.163.63.0/24 descr: route origin: AS57227 mnt-by: SUBNET05-MNT created: 2015-07-08T12:22:08Z last-modified: 2015-07-08T12:22:08Z 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: 176.120.192.0/19 descr: Route origin: AS57227 mnt-by: SUBNET05-MNT created: 2012-09-20T18:03:29Z last-modified: 2012-09-20T18:03:29Z 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: 185.110.44.0/22 descr: Route to Sabnet LLC AS origin: AS57227 mnt-by: SUBNET05-MNT created: 2015-09-23T11:12:38Z last-modified: 2015-09-23T11:12:38Z 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