These entries are queried from radb.net using whois, you can try my project getting these.
:AS16846 route: 216.147.174.0/24 descr: Proxy for customer - High Point Networks origin: AS16846 mnt-by: MAINT-11232 changed: Miles.McCredie [at] midco.com 20220316 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source