These entries are queried from radb.net using whois, you can try my project getting these.
:AS137383 route: 103.120.244.0/24 descr: Route Object for AS137383 origin: AS137383 notify: ipnoc [at] pgascom.co.id mnt-by: MAINT-AS58463 changed: ipnoc [at] pgascom.co.id 20180816 source: RADB last-modified: 2023-11-13T15:54:28Z rpki-ov-state: valid route: 103.120.244.0/24 descr: Route Object of PT. Mandiri Sekuritas descr: Corporate / Direct Member IDNIC descr: Jakarta origin: AS137383 mnt-by: MAINT-ID-MANDIRISEK last-modified: 2019-08-08T02:35:08Z source: APNIC rpki-ov-state: valid route: 103.141.228.0/24 descr: Route Object for AS137383 origin: AS137383 notify: ipnoc [at] pgascom.co.id mnt-by: MAINT-AS58463 changed: ipnoc [at] pgascom.co.id 20190806 source: RADB last-modified: 2023-11-13T15:57:00Z rpki-ov-state: valid route: 103.141.228.0/24 descr: Route Object of PT. Mandiri Sekuritas descr: Corporate / Direct Member IDNIC descr: Jakarta origin: AS137383 mnt-by: MAINT-ID-MANDIRISEK last-modified: 2019-08-08T02:35:26Z source: APNIC rpki-ov-state: valid