These entries are queried from radb.net using whois, you can try my project getting these.
:AS196721 route: 91.212.81.0/24 descr: Administration of Sakhalin Region origin: AS196721 mnt-by: MNT-ASO mnt-by: AS30745-MNT created: 2009-06-21T22:46:09Z last-modified: 2023-01-10T09:35:34Z 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: 212.6.30.0/24 origin: AS196721 mnt-by: SNC-MNT created: 2021-01-27T23:45:37Z last-modified: 2021-01-28T00:13:15Z source: RIPE mnt-lower: MNT-ASO 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