These entries are queried from radb.net using whois, you can try my project getting these.
:AS4784 route: 202.28.124.0/24 descr: South East Asia University Network origin: AS4784 notify: surachet [at] sau.ac.th notify: noc [at] uni.net.th mnt-by: MAINT-AS4621 changed: tawee [at] uni.net.th 20100509 #04:30:07Z 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: 203.148.142.0/24 descr: South East Asia University Network origin: AS4784 notify: noc [at] uni.net.th notify: surachet [at] sau.ac.th mnt-by: MAINT-AS4621 changed: tawee [at] uni.net.th 20100509 #04:35:03Z source: RADB last-modified: 2023-11-13T15:55:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source