These entries are queried from radb.net using whois, you can try my project getting these.
:AS8592 route: 45.147.82.0/23 origin: AS8592 mnt-by: MSUNET-MNT created: 2020-07-20T20:47:50Z last-modified: 2020-07-20T20:47:50Z 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: not_found # No ROAs found, or RPKI validation not enabled for source route: 212.16.0.0/19 descr: IMT-Center descr: Moscow, Russia origin: AS8592 mnt-by: MSUNET-MNT created: 1970-01-01T00:00:00Z last-modified: 2019-09-17T14:22:57Z 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: 212.16.0.0/20 descr: IMT-Center descr: Moscow, Russia origin: AS8592 mnt-by: MSUNET-MNT created: 2009-04-14T13:03:04Z last-modified: 2019-09-17T14:23:26Z 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: 212.16.16.0/21 descr: IMT-Center descr: Moscow, Russia origin: AS8592 mnt-by: MSUNET-MNT created: 2019-09-17T14:20:42Z last-modified: 2019-09-17T14:20:42Z 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: 212.16.24.0/22 descr: IMT-Center descr: Moscow, Russia origin: AS8592 mnt-by: MSUNET-MNT created: 2019-09-17T14:22:20Z last-modified: 2019-09-17T14:22:20Z 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: 2a02:24f0::/32 descr: IMT-Center origin: AS8592 notify: noc [at] imt.ru mnt-by: MSUNET-MNT created: 2012-11-05T12:55:30Z last-modified: 2012-11-05T12:55:30Z 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