These entries are queried from radb.net using whois, you can try my project getting these.
:AS20864 route: 213.143.224.0/24 descr: Turk Telecom route object origin: AS20864 mnt-by: MAINT-AS55002 changed: netops [at] defense.net 20171226 source: RADB last-modified: 2023-11-13T15:52:42Z rpki-ov-state: valid route: 213.143.224.0/24 descr: Sisecam origin: AS20864 mnt-by: IS_NET-MNT created: 2011-10-12T10:35:28Z last-modified: 2011-10-12T10:35:28Z 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