These entries are queried from radb.net using whois, you can try my project getting these.
:AS271018 route: 200.52.228.0/22 origin: AS271018 descr: Alexandre B. de Souza mnt-by: MAINT-AS53087 changed: noc [at] tely.com.br 20200812 #03:07:07Z source: RADB last-modified: 2023-11-13T16:01:31Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 200.52.228.0/22 descr: ALEXANDRE B. DE SOUZA origin: AS271018 notify: noc [at] lvnetwork.com.br mnt-by: MAINT-AS271018 changed: noc [at] lvnetwork.com.br 20221104 #16:56:42Z source: TC last-modified: 2022-11-04T19:56:57Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 200.52.228.0/22 descr: PROXY FOR CUSTOMER - UNIVERSAL NET - REDEBANDALARGA origin: AS271018 mnt-by: MAINT-AS263877 notify: junior [at] routerx.net.br changed: junior [at] routerx.net.br 20220304 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 200.52.228.0/23 descr: ALEXANDRE B. DE SOUZA origin: AS271018 notify: noc [at] lvnetwork.com.br mnt-by: MAINT-AS271018 changed: noc [at] lvnetwork.com.br 20221104 #16:56:42Z source: TC last-modified: 2022-11-04T19:56:57Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 200.52.228.0/23 descr: CLARO S.A. Customer origin: AS271018 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210329 source: RADB last-modified: 2023-11-13T16:05:27Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 200.52.228.0/24 descr: ALEXANDRE B. DE SOUZA origin: AS271018 notify: noc [at] lvnetwork.com.br mnt-by: MAINT-AS271018 changed: noc [at] lvnetwork.com.br 20221104 #16:56:42Z source: TC last-modified: 2022-11-04T19:56:57Z rpki-ov-state: valid route: 200.52.228.0/24 descr: CLARO S.A. Customer origin: AS271018 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20220303 source: RADB last-modified: 2023-11-13T16:09:26Z rpki-ov-state: valid route: 200.52.229.0/24 descr: ALEXANDRE B. DE SOUZA origin: AS271018 notify: noc [at] lvnetwork.com.br mnt-by: MAINT-AS271018 changed: noc [at] lvnetwork.com.br 20221104 #16:56:42Z source: TC last-modified: 2022-11-04T19:56:57Z rpki-ov-state: valid route: 200.52.229.0/24 descr: CLARO S.A. Customer origin: AS271018 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20211213 source: RADB last-modified: 2023-11-13T16:09:03Z rpki-ov-state: valid route: 200.52.230.0/23 descr: ALEXANDRE B. DE SOUZA origin: AS271018 notify: noc [at] lvnetwork.com.br mnt-by: MAINT-AS271018 changed: noc [at] lvnetwork.com.br 20221104 #16:56:42Z source: TC last-modified: 2022-11-04T19:56:57Z rpki-ov-state: valid route: 200.52.230.0/23 descr: CLARO S.A. Customer origin: AS271018 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20211213 source: RADB last-modified: 2023-11-13T16:09:03Z rpki-ov-state: valid route: 200.52.230.0/24 descr: CLARO S.A. Customer origin: AS271018 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: valid route: 200.52.230.0/24 descr: ALEXANDRE B. DE SOUZA origin: AS271018 notify: noc [at] lvnetwork.com.br mnt-by: MAINT-AS271018 changed: noc [at] lvnetwork.com.br 20221104 #16:56:42Z source: TC last-modified: 2022-11-04T19:56:57Z rpki-ov-state: valid route: 200.52.231.0/24 descr: CLARO S.A. Customer origin: AS271018 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210719 source: RADB last-modified: 2023-11-13T16:07:58Z rpki-ov-state: valid route: 200.52.231.0/24 descr: ALEXANDRE B. DE SOUZA origin: AS271018 notify: noc [at] lvnetwork.com.br mnt-by: MAINT-AS271018 changed: noc [at] lvnetwork.com.br 20221104 #16:56:42Z source: TC last-modified: 2022-11-04T19:56:57Z rpki-ov-state: valid route6: 2804:7504::/32 origin: AS271018 descr: Globenet Customer - Telium - Alexandre B de Souza mnt-by: MAINT-AS52320 changed: leonardo.almeida [at] globenet.net 20210310 #16:45:07Z source: RADB last-modified: 2023-11-13T16:05:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:7504::/32 descr: ALEXANDRE B. DE SOUZA origin: AS271018 notify: noc [at] lvnetwork.com.br mnt-by: MAINT-AS271018 changed: noc [at] lvnetwork.com.br 20221104 #16:56:42Z source: TC last-modified: 2022-11-04T19:56:57Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:7504::/34 descr: CLARO S.A. Customer origin: AS271018 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20230628 source: RADB last-modified: 2023-11-13T16:17:32Z rpki-ov-state: valid route6: 2804:7504:4000::/34 descr: CLARO S.A. Customer origin: AS271018 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210723 source: RADB last-modified: 2023-11-13T16:07:59Z rpki-ov-state: valid