These entries are queried from radb.net using whois, you can try my project getting these.
:AS136392 route: 203.4.216.0/21 descr: St Vincent's Hospital (Melbourne) Limited origin: AS136392 mnt-by: MAINT-AU-SVHM country: AU mnt-routes: MAINT-AU-SVHM last-modified: 2017-03-07T04:26:28Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.4.216.0/21 descr: Proxy route object registered by AS2764 origin: AS136392 remarks: This route object was created by AAPT on behalf of a customer. remarks: As some of AAPTs upstream networks filter based on IRR objects, remarks: this route object has been created to ensure that the advertisement remarks: of this prefix is not rejected. notify: routing.shared [at] aapt.com.au mnt-by: MAINT-AS2764 changed: nobody [at] aapt.com.au 20180524 source: RADB last-modified: 2023-11-13T16:16:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source