These entries are queried from radb.net using whois, you can try my project getting these.
:AS22594 route: 134.161.0.0/16 descr: University of Northern Iowa origin: AS22594 admin-c: ADMIN3774-ARIN tech-c: KC152-ARIN mnt-by: MAINT-AS13855 changed: josh.hoppes [at] cfunet.net 20170207 #22:15:51Z source: RADB last-modified: 2023-11-13T15:50:38Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source