These entries are queried from radb.net using whois, you can try my project getting these.
:AS24256 route: 202.45.12.0/24 descr: temp registration origin: AS24256 notify: tech [at] ntt.net mnt-by: MAINT-NTTCOM-BB changed: junta [at] ntt.net 20050204 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source