These entries are queried from radb.net using whois, you can try my project getting these.
:AS23452 route: 63.245.162.0/23 descr: Proxy fbo McPherson College (AS23452) origin: AS23452 remarks: Windstream Footprint mnt-by: MAINT-AS7029 changed: Christopher.Canevit [at] windstream.com 20180109 source: RADB last-modified: 2023-11-13T15:52:56Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source