These entries are queried from radb.net using whois, you can try my project getting these.
:AS52731 route: 138.255.140.0/22 origin: AS52731 descr: FORTE-CUSTOMER mnt-by: MAINT-AS263009 changed: douglas [at] fortetelecom.com.br 20190604 #14:35:05Z source: RADB last-modified: 2023-11-13T15:56:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.255.140.0/23 descr: CLARO S.A. Customer origin: AS52731 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20200722 source: RADB last-modified: 2023-11-13T16:01:14Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.255.140.0/24 descr: CLARO S.A. Customer origin: AS52731 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20200722 source: RADB last-modified: 2023-11-13T16:01:14Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.255.141.0/24 descr: CLARO S.A. Customer origin: AS52731 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20200722 source: RADB last-modified: 2023-11-13T16:01:14Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.255.142.0/23 descr: CLARO S.A. Customer origin: AS52731 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20200722 source: RADB last-modified: 2023-11-13T16:01:14Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.255.142.0/24 descr: CLARO S.A. Customer origin: AS52731 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20200722 source: RADB last-modified: 2023-11-13T16:01:14Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.255.143.0/24 descr: CLARO S.A. Customer origin: AS52731 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20200722 source: RADB last-modified: 2023-11-13T16:01:14Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.84.248.0/21 origin: AS52731 descr: Objeto de rota AS52731 admin-c: Anderson Heringer tech-c: Vitor Sa notify: engenharia [at] k2telecom.com.br mnt-by: MAINT-AS53181 changed: engenharia [at] k2telecom.com.br 20200721 #13:47:38Z source: RADB last-modified: 2023-11-13T16:01:13Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.84.248.0/22 descr: CLARO S.A. Customer origin: AS52731 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20200723 source: RADB last-modified: 2023-11-13T16:01:14Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.84.248.0/23 descr: CLARO S.A. Customer origin: AS52731 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20200723 source: RADB last-modified: 2023-11-13T16:01:14Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.84.248.0/24 descr: CLARO S.A. Customer origin: AS52731 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20201119 source: RADB last-modified: 2023-11-13T16:03:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.84.249.0/24 descr: CLARO S.A. Customer origin: AS52731 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20201119 source: RADB last-modified: 2023-11-13T16:03:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.84.250.0/23 descr: CLARO S.A. Customer origin: AS52731 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20200723 source: RADB last-modified: 2023-11-13T16:01:14Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.84.250.0/24 descr: CLARO S.A. Customer origin: AS52731 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20201119 source: RADB last-modified: 2023-11-13T16:03:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.84.251.0/24 descr: CLARO S.A. Customer origin: AS52731 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20201119 source: RADB last-modified: 2023-11-13T16:03:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.84.252.0/22 descr: CLARO S.A. Customer origin: AS52731 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20200723 source: RADB last-modified: 2023-11-13T16:01:14Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.84.252.0/23 descr: CLARO S.A. Customer origin: AS52731 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20200723 source: RADB last-modified: 2023-11-13T16:01:14Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.84.252.0/24 descr: CLARO S.A. Customer origin: AS52731 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20201119 source: RADB last-modified: 2023-11-13T16:03:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.84.253.0/24 descr: CLARO S.A. Customer origin: AS52731 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20201119 source: RADB last-modified: 2023-11-13T16:03:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.84.254.0/23 descr: CLARO S.A. Customer origin: AS52731 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20200723 source: RADB last-modified: 2023-11-13T16:01:14Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.84.254.0/24 descr: CLARO S.A. Customer origin: AS52731 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20201119 source: RADB last-modified: 2023-11-13T16:03:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.84.255.0/24 descr: CLARO S.A. Customer origin: AS52731 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20201119 source: RADB last-modified: 2023-11-13T16:03:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:2890::/32 origin: AS52731 descr: Objeto de rota AS52731 admin-c: Anderson Heringer tech-c: Vitor Sa notify: engenharia [at] k2telecom.com.br mnt-by: MAINT-AS53181 changed: engenharia [at] k2telecom.com.br 20200721 #13:48:59Z source: RADB last-modified: 2023-11-13T16:01:13Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:2890::/33 descr: CLARO S.A. Customer origin: AS52731 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20230323 source: RADB last-modified: 2023-11-13T16:15:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:2890:8000::/33 descr: CLARO S.A. Customer origin: AS52731 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20230324 source: RADB last-modified: 2023-11-13T16:15:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source