These entries are queried from radb.net using whois, you can try my project getting these.
:AS198877 route: 91.240.25.0/24 descr: UTair Aviation JSC origin: AS198877 mnt-by: ROSTELECOM-MNT mnt-by: SKL4-MNT mnt-by: ARZ25-MNT created: 2012-06-08T13:45:38Z last-modified: 2022-08-18T06:17:11Z 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 route6: 2001:67c:19f4::/48 descr: UTair Aviation JSC origin: AS198877 mnt-by: ROSTELECOM-MNT mnt-by: SKL4-MNT mnt-by: ARZ25-MNT created: 2014-01-30T08:20:04Z last-modified: 2022-08-18T06:26:23Z 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