These entries are queried from radb.net using whois, you can try my project getting these.
:AS11285 route: 216.52.5.0/24 descr: PNAP-SFJ PNAP-SFJ-FLYCAST origin: AS11285 mnt-by: MAINT-AS1828 changed: geoff [at] internap.com 20010216 source: RADB last-modified: 2023-11-13T16:14:12Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source