These entries are queried from radb.net using whois, you can try my project getting these.
:AS400234 route: 216.99.193.0/24 origin: AS400234 descr: JHSN remarks: CENTRAL mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20221109 source: RADB last-modified: 2023-11-13T16:13:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source