These entries are queried from radb.net using whois, you can try my project getting these.
:AS140603 route: 203.24.61.0/24 origin: AS140603 descr: CEA Technologies PTY LTD 59-65 Gladstone Street, Fyshwick ACT 2609 mnt-by: MAINT-CEATECH-AU last-modified: 2020-06-02T23:46:10Z source: APNIC rpki-ov-state: valid route: 203.24.61.0/24 origin: AS140603 descr: Proxy route mnt-by: MAINT-AS7545 changed: aris.delavega [at] tpgtelecom.com.au 20200505 #08:12:44Z source: RADB last-modified: 2023-11-13T16:00:38Z rpki-ov-state: valid route6: 2001:df3:8f80::/48 origin: AS140603 descr: CEA Technologies PTY LTD 59-65 Gladstone Street, Fyshwick ACT 2609 mnt-by: MAINT-CEATECH-AU last-modified: 2020-05-04T06:54:23Z source: APNIC rpki-ov-state: valid route6: 2001:df3:8f80::/48 origin: AS140603 descr: Proxy route mnt-by: MAINT-AS7545 changed: aris.delavega [at] tpgtelecom.com.au 20200505 #08:18:40Z source: RADB last-modified: 2023-11-13T16:00:38Z rpki-ov-state: valid