These entries are queried from radb.net using whois, you can try my project getting these.
:AS399314 route: 12.18.106.0/24 descr: Tufts Associated Health Plans, Inc origin: AS399314 mnt-by: MAINT-AS27506 changed: rory.sheehan [at] crowncastle.com 20210806 source: RADB last-modified: 2023-11-13T16:08:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source