These entries are queried from radb.net using whois, you can try my project getting these.
:AS38715 route: 203.173.80.0/21 descr: SANMEDIA-NET CIDR Block No.1 origin: AS38715 admin-c: SY1389-AP tech-c: SY1389-AP notify: yoshie [at] sanmedia.co.jp mnt-by: MAINT-AS23929 changed: kayawake [at] foresightwave.net 20120308 #00:01:14Z source: RADB last-modified: 2023-11-13T15:42:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source