These entries are queried from radb.net using whois, you can try my project getting these.
:AS39406 route: 91.212.68.0/24 descr: Convex-Zarechny origin: AS39406 notify: noc [at] convex.ru mnt-by: mnt-ru-csu-1 created: 2009-08-10T04:24:23Z last-modified: 2020-03-31T07:24:01Z 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: 188.68.82.0/23 descr: Convex Zarechny origin: AS39406 mnt-by: mnt-ru-csu-1 created: 2019-03-01T07:11:47Z last-modified: 2020-03-31T11:35:14Z 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