These entries are queried from radb.net using whois, you can try my project getting these.
:AS6141 route: 192.33.191.0/24 descr: Proxy fbo Grinnell Mutual Reinsurance Company (AS6141) origin: AS6141 remarks: Windstream Footprint mnt-by: MAINT-AS7029 changed: Kyle.Fine [at] windstream.com 20140805 source: RADB last-modified: 2023-11-13T15:46:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source