These entries are queried from radb.net using whois, you can try my project getting these.
:AS26682 route: 198.252.222.0/24 descr: GREEN MOUNTAIN COLLEGE origin: AS26682 mnt-by: MAINT-SOVER-NOC changed: noc [at] sover.net 20121025 #13:25:51Z source: RADB last-modified: 2023-11-13T16:00:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source