These entries are queried from radb.net using whois, you can try my project getting these.
:AS31294 route: 83.220.160.0/22 descr: LANTECH origin: AS31294 mnt-by: LANTECH-MNT created: 2004-04-15T07:48:05Z last-modified: 2013-06-27T15:08:56Z 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: 2a01:b8a0::/32 origin: AS31294 mnt-by: LANTECH-MNT created: 2023-01-24T18:07:54Z last-modified: 2023-01-24T18:07:54Z 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