These entries are queried from radb.net using whois, you can try my project getting these.
:AS55909 route: 103.12.158.0/24 descr: National Institute of Technology, Kochi College X-keiro : i-center [at] kochi-ct.ac.jp origin: AS55909 notify: i-center [at] kochi-ct.ac.jp mnt-by: MAINT-AS55909 changed: chamada [at] jm.kochi-ct.ac.jp 20240305 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:df0:2cc::/48 descr: National Institute of Technology, Kochi College X-keiro : i-center [at] kochi-ct.ac.jp origin: AS55909 notify: i-center [at] kochi-ct.ac.jp mnt-by: MAINT-AS55909 changed: chamada [at] jm.kochi-ct.ac.jp 20240305 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source