These entries are queried from radb.net using whois, you can try my project getting these.
:AS14678 route: 209.131.56.0/24 descr: Yahoo! Inc. - Hillsboro origin: AS14678 mnt-by: MAINT-YAHOO changed: spencere [at] yahoo-inc.com 20090504 source: RADB last-modified: 2023-11-13T15:40:31Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source