These entries are queried from radb.net using whois, you can try my project getting these.
:AS264476 route: 192.100.252.0/23 origin: AS264476 descr: AS264476 mnt-by: MAINT-AS52965 changed: rodrigo [at] 1telecom.com.br 20220311 #19:56:54Z source: RADB last-modified: 2023-11-13T16:10:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2801:80:df0::/48 origin: AS264476 descr: AS264476 mnt-by: MAINT-AS52965 changed: rodrigo [at] 1telecom.com.br 20220311 #19:58:04Z source: RADB last-modified: 2023-11-13T16:10:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source