These entries are queried from radb.net using whois, you can try my project getting these.
:AS398484 route: 204.238.255.0/24 origin: AS398484 descr: Clarke University mnt-by: MAINT-AS30036 changed: ezinnel [at] mediacomcc.com 20201023 #13:12:10Z source: RADB last-modified: 2023-11-13T16:02:40Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source