These entries are queried from radb.net using whois, you can try my project getting these.
:AS20138 route: 12.139.152.0/24 descr: Carson Tahoe Hospital origin: AS20138 mnt-by: MAINT-CHTR-WD changed: kevin.brunner [at] chartercom.com 20100929 #18:49:02Z source: RADB last-modified: 2023-11-13T16:11:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source