These entries are queried from radb.net using whois, you can try my project getting these.
:AS399353 route: 38.147.192.0/19 origin: AS399353 descr: Route Registered for Cogent Communications Customer - Netafy, Inc. geoidx: US mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com 20210630 #15:15:45Z source: RADB last-modified: 2023-11-13T16:07:49Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source