These entries are queried from radb.net using whois, you can try my project getting these.
:AS63397 route: 47.19.152.0/24 descr: Willett Advisors origin: AS63397 mnt-by: MAINT-AS27506 changed: probillard [at] lightower.com 20150306 source: RADB last-modified: 2023-11-13T15:47:20Z rpki-ov-state: valid route: 104.247.63.0/24 descr: Willett Advisors LLC origin: AS63397 mnt-by: MAINT-AS27506 changed: robert.hinst [at] crowncastle.com 20190214 #19:39:41Z source: RADB last-modified: 2023-11-13T15:55:41Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source