These entries are queried from radb.net using whois, you can try my project getting these.
:AS396433 route: 192.131.141.0/24 origin: AS396433 descr: Community Medical Center, Inc. 3307 Barada Street Falls City NE 68355 United States admin-c: JOSEP192-ARIN tech-c: JOSEP192-ARIN mnt-by: MNT-CMC-387 created: 2021-06-28T18:22:45Z last-modified: 2021-06-28T18:22:45Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.131.141.0/24 origin: AS396433 descr: SENTCO-CMC mnt-by: MAINT-AS13807 changed: jclingan [at] gpcom.com 20190110 #18:26:25Z source: RADB last-modified: 2023-11-13T15:57:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source