These entries are queried from radb.net using whois, you can try my project getting these.
:AS15756 route: 62.213.81.0/24 descr: RU.CARAVAN network origin: AS15756 mnt-by: CARAVAN53-MNT mnt-by: AM65535-MNT created: 2014-11-07T16:08:24Z last-modified: 2017-05-05T11:59:41Z 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: 194.135.100.0/24 descr: RU-MATRIXTELECOM origin: AS15756 mnt-by: RU-MATRIXTELECOM-MNT created: 2019-02-05T08:14:59Z last-modified: 2021-05-25T11:56:45Z 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: 217.22.161.0/24 origin: AS15756 mnt-by: RU-MATRIXTELECOM-MNT created: 2019-02-05T08:16:18Z last-modified: 2019-02-05T08:16:18Z 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