These entries are queried from radb.net using whois, you can try my project getting these.
:AS151833 route: 203.223.179.0/24 origin: AS151833 descr: Sarb Management Group Level 6, 30 Convention Centre Place mnt-by: MAINT-DATA-COM-AU last-modified: 2023-11-15T04:16:35Z source: APNIC rpki-ov-state: valid