These entries are queried from radb.net using whois, you can try my project getting these.
:AS139964 route: 103.146.28.0/23 descr: Route Object for AS139964 origin: AS139964 notify: ipnoc [at] pgascom.co.id mnt-by: MAINT-AS58463 changed: ipnoc [at] pgascom.co.id 20200921 source: RADB last-modified: 2023-11-13T16:01:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.146.28.0/24 descr: Route Object for AS139964 origin: AS139964 notify: ipnoc [at] pgascom.co.id mnt-by: MAINT-AS58463 changed: ipnoc [at] pgascom.co.id 20200921 source: RADB last-modified: 2023-11-13T16:01:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.146.29.0/24 descr: Route Object for AS139964 origin: AS139964 notify: ipnoc [at] pgascom.co.id mnt-by: MAINT-AS58463 changed: ipnoc [at] pgascom.co.id 20200921 source: RADB last-modified: 2023-11-13T16:01:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source