These entries are queried from radb.net using whois, you can try my project getting these.
:AS63791 route: 103.169.144.0/23 descr: doornoc IPv4 BLOCK NO.1 X-Keiro: noc [at] doornoc.net origin: AS63791 notify: noc [at] doornoc.net mnt-by: MAINT-AS63791 changed: kenichi.ikegami [at] doornoc.net 20231001 source: JPIRR rpki-ov-state: valid route6: 2407:a2c0::/32 descr: doornoc IPv6 BLOCK NO.1 X-Keiro: noc [at] doornoc.net origin: AS63791 notify: noc [at] doornoc.net mnt-by: MAINT-AS63791 changed: kenichi.ikegami [at] doornoc.net 20231001 source: JPIRR rpki-ov-state: valid