These entries are queried from radb.net using whois, you can try my project getting these.
:AS136149 route: 103.81.163.0/24 descr: Announce on behalf of Colt on AS136149 origin: AS136149 mnt-by: MAINT-AS132132 changed: htet [at] myrepublic.com.sg 20171130 #02:50:51Z source: RADB last-modified: 2023-11-13T15:52:36Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.81.163.0/24 origin: AS136149 descr: MediaCorp Pte Ltd Mediacorp Campus 1 Stars Avenue mnt-by: MAINT-MEDIACORPPTELTD-SG last-modified: 2021-06-09T05:36:15Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source