These entries are queried from radb.net using whois, you can try my project getting these.
:AS394523 route: 199.48.13.0/24 descr: Proxy fbo The Hill School (AS394523) origin: AS394523 remarks: Windstream Footprint mnt-by: MAINT-AS7029 changed: David.Friant [at] windstream.com 20151012 source: RADB last-modified: 2023-11-13T15:48:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source