These entries are queried from radb.net using whois, you can try my project getting these.
:AS15050 route: 38.75.69.0/24 origin: AS15050 descr: Route Registered for Cogent Communications Customer - The Rockefeller Foundation geoidx: US mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com 20230831 source: RADB last-modified: 2023-11-13T16:18:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 38.98.84.0/24 descr: RR-RC-The Rockefeller Foundation-NYC origin: AS15050 admin-c: IPADDREG tech-c: IPADDREG notify: publicipaddressing [at] charter.com mnt-by: MAINT-RR changed: publicipaddressing [at] charter.com 20210310 #06:22:59Z source: RADB last-modified: 2023-11-13T16:15:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source