These entries are queried from radb.net using whois, you can try my project getting these.
:AS15306 route: 204.107.136.0/24 origin: AS15306 admin-c: DONP tech-c: DONP notify: don.paalhar [at] walsworth.com mnt-by: MAINT-AS54671 changed: don.paalhar [at] walsworth.com 20231116 # 2117Z source: RADB last-modified: 2023-11-16T21:17:51Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source