These entries are queried from radb.net using whois, you can try my project getting these.
:AS139082 route: 103.139.108.0/24 origin: AS139082 descr: Singha Estate Public Company Limited admin-c: SEPC1-AP tech-c: SEPC1-AP notify: it [at] singhaestate.co.th mnt-by: MAINT-AS7642 changed: adam.shaheraz [at] dhiraagu.com.mv 20190716 #04:04:29Z source: RADB last-modified: 2023-11-13T15:56:44Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source