These entries are queried from radb.net using whois, you can try my project getting these.
:AS262781 route: 186.233.64.0/21 descr: Cadastrada para Transito na Flys Interativa origin: AS262781 admin-c: Eduardo F Parajo tech-c: Epafras R Schaden mnt-by: MAINT-AS28663 changed: epafras [at] durand.com.br 20121019 #19:19:19Z source: RADB last-modified: 2023-11-13T16:07:49Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 186.233.64.0/21 descr: RADIOBR INTERNET LTDA origin: AS262781 mnt-by: MAINT-AS262781 changed: radiobrnet2 [at] hotmail.com 20110113 notify: TC-HM-MNT remarks: Thu Jan 13 14:35:04 BRST 2011 source: TC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 186.233.64.0/22 descr: G8 Customer Proxy Route origin: AS262781 mnt-by: MAINT-AS28329 changed: no-reply [at] g8.net.br 20211019 source: RADB last-modified: 2023-11-13T16:08:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 186.233.64.0/24 descr: RADIOBR INTERNET LTDA origin: AS262781 mnt-by: MAINT-AS262781 changed: radiobrnet2 [at] hotmail.com 20110113 notify: TC-HM-MNT remarks: Thu Jan 13 14:35:04 BRST 2011 source: TC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 186.233.66.0/24 descr: CLARO S.A. Customer origin: AS262781 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20231221 source: RADB last-modified: 2023-12-21T13:51:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 186.233.67.0/24 descr: G8 Customer Proxy Route origin: AS262781 mnt-by: MAINT-AS28329 changed: no-reply [at] g8.net.br source: RADB last-modified: 2023-12-13T23:00:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 186.233.68.0/24 descr: ITX-NOVONET origin: AS262781 mnt-by: MAINT-AS18678 changed: noc [at] internexa.com 20180810 #19:06:39Z source: RADB last-modified: 2023-11-13T15:54:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 186.233.71.0/24 descr: RADIOBR INTERNET LTDA origin: AS262781 mnt-by: MAINT-AS262781 changed: radiobrnet2 [at] hotmail.com 20110113 notify: TC-HM-MNT remarks: Thu Jan 13 14:35:04 BRST 2011 source: TC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source