These entries are queried from radb.net using whois, you can try my project getting these.
:AS20239 route: 134.156.0.0/16 descr: ALLETE(MN Power) origin: AS20239 mnt-by: MAINT-CHTR-WD changed: kevin.brunner [at] chartercom.com 20090909 #18:09:48Z source: RADB last-modified: 2023-11-13T16:11:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source