These entries are queried from radb.net using whois, you can try my project getting these.
:AS397751 route: 216.38.160.0/24 descr: Proxy fbo James Avery Craftsman (AS397751) origin: AS397751 remarks: Windstream Footprint mnt-by: MAINT-AS7029 changed: Jason.Coggins [at] windstream.com 20190815 source: RADB last-modified: 2023-11-13T15:57:04Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source