These entries are queried from radb.net using whois, you can try my project getting these.
:AS19473 route: 69.50.144.0/20 origin: AS19473 descr: Southwestern Adventist mnt-by: MAINT-AS26077 changed: brad [at] team.nxlink.com 20200825 #13:15:47Z source: RADB last-modified: 2023-11-13T16:01:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.136.234.0/24 origin: AS19473 descr: Southwestern Adventist mnt-by: MAINT-AS26077 changed: brad [at] team.nxlink.com 20200825 #13:16:32Z source: RADB last-modified: 2023-11-13T16:01:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source