These entries are queried from radb.net using whois, you can try my project getting these.
:AS393479 route: 192.31.157.0/24 origin: AS393479 descr: Army Aviation Center Federal Credit Union aka All in Credit Union mnt-by: MAINT-AS13760 changed: graham.wooden [at] uniti.com 20210208 #15:31:59Z source: RADB last-modified: 2023-11-13T16:03:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source