These entries are queried from radb.net using whois, you can try my project getting these.
:AS135900 route: 103.205.100.0/22 descr: HNSDC-VN origin: AS135900 mnt-by: MAINT-AS18403 changed: netadmin [at] fpt.vn 20170306 #06:01:17Z source: RADB last-modified: 2023-11-13T15:50:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.205.100.0/23 descr: HNSDC-VN origin: AS135900 mnt-by: MAINT-AS18403 changed: netadmin [at] fpt.vn 20170306 #06:02:52Z source: RADB last-modified: 2023-11-13T15:50:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.205.100.0/24 descr: HNSDC-VN origin: AS135900 mnt-by: MAINT-AS18403 changed: netadmin [at] fpt.vn 20170306 #06:04:58Z source: RADB last-modified: 2023-11-13T15:50:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.205.101.0/24 descr: HNSDC-VN origin: AS135900 mnt-by: MAINT-AS18403 changed: netadmin [at] fpt.vn 20170306 #06:06:32Z source: RADB last-modified: 2023-11-13T15:50:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.205.102.0/23 descr: HNSDC-VN origin: AS135900 mnt-by: MAINT-AS18403 changed: netadmin [at] fpt.vn 20170306 #06:03:55Z source: RADB last-modified: 2023-11-13T15:50:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.205.102.0/24 descr: HNSDC-VN origin: AS135900 mnt-by: MAINT-AS18403 changed: netadmin [at] fpt.vn 20170306 #06:13:31Z source: RADB last-modified: 2023-11-13T15:50:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.205.103.0/24 descr: HNSDC-VN origin: AS135900 mnt-by: MAINT-AS18403 changed: netadmin [at] fpt.vn 20170306 #06:15:30Z source: RADB last-modified: 2023-11-13T15:50:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:df3:a980::/48 descr: HANOI-VN descr: HaNoi Department of Information and Communications origin: AS135900 mnt-by: MAINT-VN-VNNIC last-modified: 2020-11-25T10:39:49Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source