These entries are queried from radb.net using whois, you can try my project getting these.
:AS38045 route: 203.188.206.0/24 descr: Yahoo! TW country: TW origin: AS38045 mnt-by: MAINT-YAHOOTW-TW last-modified: 2021-07-19T00:57:58Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.188.207.0/24 descr: Yahoo-Corp country: TW origin: AS38045 mnt-by: MAINT-YAHOOTW-TW last-modified: 2021-07-19T00:57:58Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source