These entries are queried from radb.net using whois, you can try my project getting these.
:AS131355 route: 103.8.13.0/24 descr: IGI company, 34 Hai Ba Trung, Hoan Kiem, Ha Noi, Vietnam origin: AS131355 mnt-by: MAINT-AS18403 changed: netadmin [at] fpt.vn 20120426 #13:28:23Z source: RADB last-modified: 2023-11-13T15:42:41Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.8.13.0/24 descr: IGI-VN origin: AS131355 notify: internet_tech [at] hanoitelecom.com mnt-by: MAINT-HANOITELECOM changed: trungnx [at] hanoitelecom.com 20130601 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source