These entries are queried from radb.net using whois, you can try my project getting these.
:AS35815 route: 31.25.24.0/21 origin: AS35815 notify: noc [at] convex.ru mnt-by: mnt-ru-csu-1 created: 2011-03-09T17:45:34Z last-modified: 2024-04-03T12:03:08Z 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: 45.9.212.0/22 origin: AS35815 mnt-by: mnt-ru-csu-1 created: 2020-01-24T08:58:52Z last-modified: 2020-01-24T08:58:52Z 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: 109.198.96.0/19 origin: AS35815 notify: noc [at] convex.ru mnt-by: mnt-ru-csu-1 created: 2009-12-24T14:51:40Z last-modified: 2024-04-04T03:43:54Z 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