These entries are queried from radb.net using whois, you can try my project getting these.
:AS52712 route: 131.108.24.0/22 origin: AS52712 descr: COSTUMER AMERICAN TOWER mnt-by: MAINT-AS23106 changed: bgp.fibra [at] americantower.com 20200219 #14:20:32Z source: RADB last-modified: 2023-11-13T16:11:41Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 131.108.24.0/22 descr: Conectiva Internet e Telecomunicacoes - ME origin: AS52712 notify: registro [at] conectivainfor.com.br mnt-by: MAINT-AS52712 changed: manutencao [at] conectivainfor.com.br 20210610 source: TC last-modified: 2021-06-10T17:42:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 131.108.24.0/23 descr: ITX origin: AS52712 mnt-by: MAINT-AS18678 changed: adminred [at] internexa.com 20160328 #14:13:51Z source: RADB last-modified: 2023-11-13T15:48:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 131.108.24.0/23 descr: Conectiva Internet e Telecomunicacoes - ME origin: AS52712 notify: registro [at] conectivainfor.com.br mnt-by: MAINT-AS52712 changed: manutencao [at] conectivainfor.com.br 20210610 source: TC last-modified: 2021-06-10T17:42:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 131.108.24.0/24 descr: Conectiva Internet e Telecomunicacoes - ME origin: AS52712 notify: registro [at] conectivainfor.com.br mnt-by: MAINT-AS52712 changed: manutencao [at] conectivainfor.com.br 20210610 source: TC last-modified: 2021-06-10T17:42:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 131.108.25.0/24 descr: Conectiva Internet e Telecomunicacoes - ME origin: AS52712 notify: registro [at] conectivainfor.com.br mnt-by: MAINT-AS52712 changed: manutencao [at] conectivainfor.com.br 20210610 source: TC last-modified: 2021-06-10T17:42:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 131.108.26.0/23 descr: Conectiva Internet e Telecomunicacoes - ME origin: AS52712 notify: registro [at] conectivainfor.com.br mnt-by: MAINT-AS52712 changed: manutencao [at] conectivainfor.com.br 20210610 source: TC last-modified: 2021-06-10T17:42:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 131.108.26.0/24 descr: Conectiva Internet e Telecomunicacoes - ME origin: AS52712 notify: registro [at] conectivainfor.com.br mnt-by: MAINT-AS52712 changed: manutencao [at] conectivainfor.com.br 20210610 source: TC last-modified: 2021-06-10T17:42:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 131.108.27.0/24 descr: Conectiva Internet e Telecomunicacoes - ME origin: AS52712 notify: registro [at] conectivainfor.com.br mnt-by: MAINT-AS52712 changed: manutencao [at] conectivainfor.com.br 20210610 source: TC last-modified: 2021-06-10T17:42:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.245.144.0/22 descr: Conectiva Internet e Telecomunicacoes - ME origin: AS52712 notify: registro [at] conectivainfor.com.br mnt-by: MAINT-AS52712 changed: manutencao [at] conectivainfor.com.br 20210610 source: TC last-modified: 2021-06-10T17:42:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.245.144.0/22 descr: G8 Networks origin: AS52712 mnt-by: MAINT-AS28329 changed: no-reply [at] g8.net.br 20190429 source: RADB last-modified: 2023-11-13T15:56:05Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.245.144.0/23 descr: Conectiva Internet e Telecomunicacoes - ME origin: AS52712 notify: registro [at] conectivainfor.com.br mnt-by: MAINT-AS52712 changed: manutencao [at] conectivainfor.com.br 20210610 source: TC last-modified: 2021-06-10T17:42:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.245.144.0/24 descr: Conectiva Internet e Telecomunicacoes - ME origin: AS52712 notify: registro [at] conectivainfor.com.br mnt-by: MAINT-AS52712 changed: manutencao [at] conectivainfor.com.br 20210610 source: TC last-modified: 2021-06-10T17:42:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.245.145.0/24 descr: Conectiva Internet e Telecomunicacoes - ME origin: AS52712 notify: registro [at] conectivainfor.com.br mnt-by: MAINT-AS52712 changed: manutencao [at] conectivainfor.com.br 20210610 source: TC last-modified: 2021-06-10T17:42:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.245.146.0/23 descr: Conectiva Internet e Telecomunicacoes - ME origin: AS52712 notify: registro [at] conectivainfor.com.br mnt-by: MAINT-AS52712 changed: manutencao [at] conectivainfor.com.br 20210610 source: TC last-modified: 2021-06-10T17:42:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.245.146.0/24 descr: Conectiva Internet e Telecomunicacoes - ME origin: AS52712 notify: registro [at] conectivainfor.com.br mnt-by: MAINT-AS52712 changed: manutencao [at] conectivainfor.com.br 20210610 source: TC last-modified: 2021-06-10T17:42:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.245.147.0/24 descr: Conectiva Internet e Telecomunicacoes - ME origin: AS52712 notify: registro [at] conectivainfor.com.br mnt-by: MAINT-AS52712 changed: manutencao [at] conectivainfor.com.br 20210610 source: TC last-modified: 2021-06-10T17:42:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.73.228.0/22 descr: Conectiva Internet e Telecomunicacoes - ME origin: AS52712 notify: registro [at] conectivainfor.com.br mnt-by: MAINT-AS52712 changed: manutencao [at] conectivainfor.com.br 20210610 source: TC last-modified: 2021-06-10T17:42:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.73.228.0/22 descr: ITX-SAMM origin: AS52712 mnt-by: MAINT-AS18678 changed: noc [at] internexa.com 20180529 #11:55:40Z source: RADB last-modified: 2023-11-13T15:53:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.73.228.0/23 descr: Conectiva Internet e Telecomunicacoes - ME origin: AS52712 notify: registro [at] conectivainfor.com.br mnt-by: MAINT-AS52712 changed: manutencao [at] conectivainfor.com.br 20210610 source: TC last-modified: 2021-06-10T17:42:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.73.228.0/24 descr: Conectiva Internet e Telecomunicacoes - ME origin: AS52712 notify: registro [at] conectivainfor.com.br mnt-by: MAINT-AS52712 changed: manutencao [at] conectivainfor.com.br 20210610 source: TC last-modified: 2021-06-10T17:42:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.73.229.0/24 descr: Conectiva Internet e Telecomunicacoes - ME origin: AS52712 notify: registro [at] conectivainfor.com.br mnt-by: MAINT-AS52712 changed: manutencao [at] conectivainfor.com.br 20210610 source: TC last-modified: 2021-06-10T17:42:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.73.230.0/23 descr: Conectiva Internet e Telecomunicacoes - ME origin: AS52712 notify: registro [at] conectivainfor.com.br mnt-by: MAINT-AS52712 changed: manutencao [at] conectivainfor.com.br 20210610 source: TC last-modified: 2021-06-10T17:42:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.73.230.0/24 descr: Conectiva Internet e Telecomunicacoes - ME origin: AS52712 notify: registro [at] conectivainfor.com.br mnt-by: MAINT-AS52712 changed: manutencao [at] conectivainfor.com.br 20210610 source: TC last-modified: 2021-06-10T17:42:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.73.231.0/24 descr: Conectiva Internet e Telecomunicacoes - ME origin: AS52712 notify: registro [at] conectivainfor.com.br mnt-by: MAINT-AS52712 changed: manutencao [at] conectivainfor.com.br 20210610 source: TC last-modified: 2021-06-10T17:42:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:1c74::/32 descr: Conectiva Internet e Telecomunicacoes - ME origin: AS52712 notify: registro [at] conectivainfor.com.br mnt-by: MAINT-AS52712 changed: manutencao [at] conectivainfor.com.br 20210610 source: TC last-modified: 2021-06-10T17:49:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:1c74::/32 descr: Cemig origin: AS52712 mnt-by: MAINT-AS18678 changed: adminred [at] internexa.com 20170203 #13:53:20Z source: RADB last-modified: 2023-11-13T15:50:36Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:1c74::/33 descr: Conectiva Internet e Telecomunicacoes - ME origin: AS52712 notify: registro [at] conectivainfor.com.br mnt-by: MAINT-AS52712 changed: manutencao [at] conectivainfor.com.br 20210610 source: TC last-modified: 2021-06-10T17:49:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:1c74:8000::/33 descr: Conectiva Internet e Telecomunicacoes - ME origin: AS52712 notify: registro [at] conectivainfor.com.br mnt-by: MAINT-AS52712 changed: manutencao [at] conectivainfor.com.br 20210610 source: TC last-modified: 2021-06-10T17:49:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source