These entries are queried from radb.net using whois, you can try my project getting these.
:AS11875 route: 199.33.224.0/23 descr: HostUS origin: AS11875 mnt-by: MAINT-AS40676 changed: william [at] psychz.net 20161028 #10:28:52Z source: RADB last-modified: 2023-11-13T15:49:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2602:815:6000::/44 origin: AS11875 descr: https://bill.herrin.us/ admin-c: WH23-ARIN tech-c: WH23-ARIN mnt-by: MNT-WILLI-76 created: 2023-07-30T18:02:12Z last-modified: 2023-07-30T18:02:12Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source