These entries are queried from radb.net using whois, you can try my project getting these.
:AS135129 route: 203.158.140.0/22 origin: AS135129 descr: Rajamangala University of Technology TawanOgg Network. admin-c: MAINT-AS4621 tech-c: MAINT-AS4621 notify: noc [at] uni.net.th mnt-by: MAINT-AS4621 changed: kriengsak [at] uni.net.th 20211019 #12:12:46Z source: RADB last-modified: 2023-11-13T16:08:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source