These entries are queried from radb.net using whois, you can try my project getting these.
:AS61204 route6: 2a00:50e0:ffff::/48 descr: NET-TV SYSTEMS SRL origin: AS61204 mnt-by: NET-TV-MNT created: 2020-05-17T09:15:02Z last-modified: 2020-05-17T09:15:02Z 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