These entries are queried from radb.net using whois, you can try my project getting these.
:AS399697 route: 137.21.0.0/16 descr: SUNY Brockport origin: AS399697 mnt-by: MAINT-AS27506 changed: michael.dimambro [at] crowncastle.com 20211215 source: RADB last-modified: 2023-11-13T16:09:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source