These entries are queried from radb.net using whois, you can try my project getting these.
:AS135977 route: 103.140.4.0/23 origin: AS135977 descr: BDA-CORP-AS-VN Vietnam BDA technology and communication joint stock company mnt-by: MAINT-AS18403 changed: netadmin [at] fpt.vn 20190829 #09:32:05Z source: RADB last-modified: 2023-11-13T15:57:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:df0:a180::/48 origin: AS135977 descr: BDA-CORP-AS-VN Vietnam BDA technology and communication joint stock company mnt-by: MAINT-AS18403 changed: netadmin [at] fpt.vn 20190829 #09:36:59Z source: RADB last-modified: 2023-11-13T15:57:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source