These entries are queried from radb.net using whois, you can try my project getting these.
:AS263964 route: 138.255.76.0/22 descr: G8 Customer Proxy Route origin: AS263964 mnt-by: MAINT-AS28329 changed: no-reply [at] g8.net.br 20200708 source: RADB last-modified: 2023-11-13T16:01:12Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.255.76.0/22 descr: Forest comercio de computadores origin: AS263964 mnt-by: MAINT-AS263964 notify: db-admin [at] bgp.net.br changed: db-admin [at] bgp.net.br 20151202 #16:48:17(BRST) source: TC last-modified: 2021-05-05T02:07:41Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.255.76.0/22 descr: PROXY FOR OUR CUSTOMER CONE origin: AS263964 mnt-by: MAINT-AS61844 changed: core [at] newmastertelecom.com.br 20211018 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.255.76.0/24 descr: Forest comercio de computadores origin: AS263964 mnt-by: MAINT-AS263964 notify: db-admin [at] bgp.net.br changed: db-admin [at] bgp.net.br 20151202 #16:48:17(BRST) source: TC last-modified: 2021-05-05T02:07:41Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.255.77.0/24 descr: Forest comercio de computadores origin: AS263964 mnt-by: MAINT-AS263964 notify: db-admin [at] bgp.net.br changed: db-admin [at] bgp.net.br 20151202 #16:48:17(BRST) source: TC last-modified: 2021-05-05T02:07:41Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.255.78.0/24 descr: Forest comercio de computadores origin: AS263964 mnt-by: MAINT-AS263964 notify: db-admin [at] bgp.net.br changed: db-admin [at] bgp.net.br 20151202 #16:48:17(BRST) source: TC last-modified: 2021-05-05T02:07:41Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.255.79.0/24 descr: Forest comercio de computadores origin: AS263964 mnt-by: MAINT-AS263964 notify: db-admin [at] bgp.net.br changed: db-admin [at] bgp.net.br 20151202 #16:48:17(BRST) source: TC last-modified: 2021-05-05T02:07:41Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:287c::/32 descr: PROXY FOR OUR CUSTOMER CONE origin: AS263964 mnt-by: MAINT-AS61844 changed: core [at] newmastertelecom.com.br 20211018 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:287c::/32 descr: G8 Customer Proxy Route origin: AS263964 mnt-by: MAINT-AS28329 changed: no-reply [at] g8.net.br 20200708 source: RADB last-modified: 2023-11-13T16:01:12Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source