These entries are queried from radb.net using whois, you can try my project getting these.
:AS49181 route: 2.57.37.0/24 origin: AS49181 mnt-by: MNT-GCX created: 2020-04-15T07:59:40Z last-modified: 2020-12-04T07:30:34Z 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: 2.57.38.0/24 origin: AS49181 mnt-by: MNT-GCX created: 2019-06-20T12:59:27Z last-modified: 2019-06-20T12:59:27Z 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: 2a09:d2c0::/32 origin: AS49181 mnt-by: MNT-GCX created: 2019-06-20T13:01:05Z last-modified: 2019-06-20T13:01:05Z 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