These entries are queried from radb.net using whois, you can try my project getting these.
:AS21748 route: 104.37.232.0/21 descr: Proxy fbo Skycom1 (AS21748) origin: AS21748 remarks: Windstream Footprint mnt-by: MAINT-AS7029 changed: David.Friant [at] windstream.com 20160401 source: RADB last-modified: 2023-11-13T15:49:06Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source