These entries are queried from radb.net using whois, you can try my project getting these.
:AS51709 route: 91.209.5.0/24 descr: R Systems Computaris Europe SRL origin: AS51709 mnt-by: COMPUTARIS-ROMANIA-MNT created: 2010-11-04T18:12:26Z last-modified: 2021-09-28T15:41:17Z 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:8b0::/48 descr: R Systems Computaris Europe SRL origin: AS51709 mnt-by: COMPUTARIS-ROMANIA-MNT created: 2021-10-19T12:19:48Z last-modified: 2021-10-19T12:19:48Z 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