These entries are queried from radb.net using whois, you can try my project getting these.
:AS62570 route: 198.133.171.0/24 descr: Proxy fbo Tufts Medical Center origin: AS62570 remarks: Paetec Footprint mnt-by: MAINT-AS7029 changed: Johnny.P.Schumacher [at] windstream.com 20140806 source: RADB last-modified: 2023-11-13T15:46:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source