These entries are queried from radb.net using whois, you can try my project getting these.
:AS53339 route: 192.75.191.0/24 descr: Added on behalf of the customer origin: AS53339 mnt-by: MAINT-AS812 changed: ismaeldomaoan [at] rci.rogers.com 20150202 #01:34:40Z source: RADB last-modified: 2023-11-13T15:47:06Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source