These entries are queried from radb.net using whois, you can try my project getting these.
:AS51509 route: 91.217.92.0/23 descr: NEO IT d.o.o. origin: AS51509 remarks: notify: ripe [at] neo.si mnt-by: ARIO-MNT mnt-by: NEOIT-MNT created: 2011-03-22T19:02:40Z last-modified: 2019-10-21T00:39:27Z 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: 2001:678:a88::/48 origin: AS51509 descr: NEO IT d.o.o. mnt-by: ARIO-MNT created: 2019-06-14T23:27:01Z last-modified: 2019-06-14T23:28:26Z 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: not_found # No ROAs found, or RPKI validation not enabled for source