These entries are queried from radb.net using whois, you can try my project getting these.
:AS29790 route: 66.141.233.0/24 descr: LIBERTY HOSPITAL NETWORK origin: AS29790 admin-c: Arnie Rosenboom tech-c: Arnie Rosenboom notify: bgp [at] libertyhospital.org mnt-by: MAINT-AS29790 changed: bgp [at] libertyhospital.org 20040204 #19:53:02(UTC) source: RADB last-modified: 2023-11-13T15:39:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source