These entries are queried from radb.net using whois, you can try my project getting these.
:AS131431 route: 103.56.160.0/24 descr: Trung tam Thong tin Hop Tac Xa VietNam origin: AS131431 mnt-by: MAINT-AS18403 changed: netadmin [at] fpt.vn 20161210 #17:06:11Z source: RADB last-modified: 2023-11-13T15:50:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.56.160.0/24 descr: CMI IP Transit origin: AS131431 admin-c: MAINT-CMI-INT-HK tech-c: MAINT-CMI-INT-HK mnt-by: MAINT-CMI-INT-HK changed: qas_support [at] cmi.chinamobile.com 20180620 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.56.161.0/24 descr: Trung tam Thong tin Hop Tac Xa VietNam origin: AS131431 mnt-by: MAINT-AS18403 changed: netadmin [at] fpt.vn 20161210 #17:06:45Z source: RADB last-modified: 2023-11-13T15:50:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.56.162.0/24 descr: Trung tam Thong tin Hop Tac Xa VietNam origin: AS131431 mnt-by: MAINT-AS18403 changed: netadmin [at] fpt.vn 20161210 #17:07:12Z source: RADB last-modified: 2023-11-13T15:50:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.56.163.0/24 descr: Trung tam Thong tin Hop Tac Xa VietNam origin: AS131431 mnt-by: MAINT-AS18403 changed: netadmin [at] fpt.vn 20161210 #17:07:47Z source: RADB last-modified: 2023-11-13T15:50:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source