These entries are queried from radb.net using whois, you can try my project getting these.
:AS267228 route: 45.231.228.0/22 descr: G8 Customer Proxy Route origin: AS267228 mnt-by: MAINT-AS28329 changed: no-reply [at] g8.net.br 20200605 source: RADB last-modified: 2023-11-13T16:00:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 45.231.229.0/24 descr: G8 Customer Proxy Route origin: AS267228 mnt-by: MAINT-AS28329 changed: no-reply [at] g8.net.br 20210826 source: RADB last-modified: 2023-11-13T16:08:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 45.231.230.0/23 descr: Sparks & Oliveira & Serv de Telecomunicacoes origin: AS267228 notify: jetelecom [at] jetelecom.com.br mnt-by: MAINT-AS263558 changed: jetelecom [at] jetelecom.com.br 20210929 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:4a44::/32 descr: G8 Customer Proxy Route origin: AS267228 mnt-by: MAINT-AS28329 changed: no-reply [at] g8.net.br 20200605 source: RADB last-modified: 2023-11-13T16:00:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source