These entries are queried from radb.net using whois, you can try my project getting these.
:AS58645 route: 103.13.168.0/22 descr: Miyagi Cable TV Co.,Ltd. CIDR-block NO.1 X-Keiro : nic [at] c-marinet.ne.jp origin: AS58645 notify: nic [at] c-marinet.ne.jp mnt-by: MAINT-AS58645 changed: nic [at] c-marinet.ne.jp 20230502 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2400:8120::/32 descr: Miyagi Cable TV Co.,Ltd. IPv6-block NO.1 X-Keiro : nic [at] c-marinet.ne.jp origin: AS58645 notify: nic [at] c-marinet.ne.jp mnt-by: MAINT-AS58645 changed: nic [at] c-marinet.ne.jp 20230502 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source