These entries are queried from radb.net using whois, you can try my project getting these.
:AS396404 route: 207.229.68.0/24 descr: proxy entry for Anderson Hospital origin: AS396404 mnt-by: MAINT-CHTR-WD changed: nicholas.etnoyer [at] charter.com 20180912 #17:57:35Z source: RADB last-modified: 2023-11-13T16:11:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source