These entries are queried from radb.net using whois, you can try my project getting these.
:AS270393 route: 190.89.140.0/22 descr: PROXY FOR CUSTOMER MUVNET TELECOM origin: AS270393 mnt-by: MAINT-AS265475 notify: junior [at] routerx.net.br changed: junior [at] routerx.net.br 20200601 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 190.89.140.0/22 descr: G8 Customer Proxy Route origin: AS270393 mnt-by: MAINT-AS28329 changed: no-reply [at] g8.net.br 20230828 source: RADB last-modified: 2023-11-13T16:18:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 190.89.140.0/23 descr: IPT TELECOM -IPv4 origin: AS270393 mnt-by: MAINT-270393 notify: noc [at] lifeit.com.br changed: douglas.mota [at] lifeit.com.br 20220114 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 190.89.142.0/24 descr: IPT TELECOM -IPv4 origin: AS270393 mnt-by: MAINT-270393 notify: noc [at] lifeit.com.br changed: douglas.mota [at] lifeit.com.br 20220114 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 190.89.142.0/24 descr: CLARO S.A. Customer origin: AS270393 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210323 source: RADB last-modified: 2023-11-13T16:05:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 190.89.143.0/24 descr: IPT TELECOM -IPv4 origin: AS270393 mnt-by: MAINT-270393 notify: noc [at] lifeit.com.br changed: douglas.mota [at] lifeit.com.br 20220114 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:6b54::/32 descr: CLARO S.A. Customer origin: AS270393 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210929 source: RADB last-modified: 2023-11-13T16:08:15Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:6b54::/32 descr: PROXY FOR CUSTOMER MUVNET TELECOM origin: AS270393 mnt-by: MAINT-AS265475 notify: junior [at] routerx.net.br changed: junior [at] routerx.net.br 20200601 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source