These entries are queried from radb.net using whois, you can try my project getting these.
:AS9741 route: 202.28.8.0/21 descr: UniNet route object for UTCC origin: AS9741 notify: noc [at] uni.net.th mnt-by: MAINT-AS4621 changed: tawee [at] uni.net.th 20030506 source: RADB last-modified: 2023-11-13T15:55:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.28.8.0/24 descr: CAT route object for LOXINFO customer UTCC origin: AS9741 mnt-by: MAINT-THIX-CAT-TH changed: chutikan [at] cat.net.th 20020321 source: RADB last-modified: 2023-11-13T15:45:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.28.9.0/24 descr: UniNet route object for UTCC origin: AS9741 notify: noc [at] uni.net.th mnt-by: MAINT-AS4621 changed: tawee [at] uni.net.th 20030506 source: RADB last-modified: 2023-11-13T15:55:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source