These entries are queried from radb.net using whois, you can try my project getting these.
:AS141750 route: 103.209.232.0/24 origin: AS141750 descr: PC mnt-by: MAINT-AS137559 changed: parker.pan [at] linkinfinityhk.com 20210803 #08:42:33Z source: RADB last-modified: 2023-11-13T16:08:01Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source