These entries are queried from radb.net using whois, you can try my project getting these.
:AS50888 route: 91.216.9.0/24 descr: Minotaur IT origin: AS50888 mnt-by: GOSCOMB-MNT created: 2010-08-09T15:57:47Z last-modified: 2010-08-09T15:57:47Z 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 route6: 2001:470:38::/48 origin: AS50888 descr: NET-2001-470-38---48-AS50888 admin-c: ZH17-ARIN tech-c: ZH17-ARIN mnt-by: MNT-HURC source: ARIN created: 2022-01-20T20:20:33Z last-modified: 2022-01-20T20:20:33Z rpki-ov-state: valid route6: 2001:67c:1dc::/48 descr: Minotaur origin: AS50888 mnt-by: GOSCOMB-MNT created: 2010-08-10T10:47:21Z last-modified: 2010-08-10T10:47:21Z 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