These entries are queried from radb.net using whois, you can try my project getting these.
:AS5473 route: 91.229.74.0/23 descr: IterikaRoute origin: AS5473 mnt-by: ALLNORILSK-MNT mnt-by: ITERIKA-MNT created: 2012-08-06T13:53:50Z last-modified: 2018-10-10T07:43:47Z 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