These entries are queried from radb.net using whois, you can try my project getting these.
:AS23538 route: 192.234.91.0/24 origin: AS23538 descr: IMONCOMM mnt-by: MAINT-AS393238 changed: dustin.howard [at] imon.net 20230609 #18:43:00Z source: RADB last-modified: 2023-11-13T16:17:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source