These entries are queried from radb.net using whois, you can try my project getting these.
:AS30355 route: 38.56.252.0/22 origin: AS30355 descr: Route Registered for Cogent Communications Customer UpLink Communications, Inc. / Genesys IT Solutions geoidx: US mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com 20230113 #23:06:05Z source: RADB last-modified: 2023-11-13T16:13:30Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source