These entries are queried from radb.net using whois, you can try my project getting these.
:AS263559 route: 186.237.248.0/21 origin: AS263559 descr: Fundacao Educacional da Regiao de Joinville remarks: Proxy-registered object for customer remarks: please direct inquiries to registro [at] rnp.br mnt-by: MAINT-AS1916 changed: registro [at] rnp.br 20190930 source: RADB last-modified: 2023-11-13T15:57:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 186.237.248.0/22 origin: AS263559 descr: Huge Networks - Customer route object mnt-by: MAINT-AS264409 changed: bruno.leonardo [at] huge-networks.com 20190815 #17:27:15Z source: RADB last-modified: 2023-11-13T15:57:04Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 186.237.252.0/22 origin: AS263559 descr: Huge Networks - Customer route object mnt-by: MAINT-AS264409 changed: bruno.leonardo [at] huge-networks.com 20190815 #17:27:35Z source: RADB last-modified: 2023-11-13T15:57:04Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2801:80:720::/48 descr: Fundacao Educacional da Regiao de Joinville origin: AS263559 mnt-by: MAINT-AS1916 changed: ari [at] rnp.br 20180416 #17:29:56Z source: RADB last-modified: 2023-11-13T15:53:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source