These entries are queried from radb.net using whois, you can try my project getting these.
:AS271403 route: 181.189.48.0/22 origin: AS271403 descr: NP TELECOM mnt-by: MAINT-AS28260 changed: yuri.muller [at] altarede.com.br 20211210 #19:12:28Z source: RADB last-modified: 2023-11-13T16:09:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 181.189.48.0/23 descr: CLARO S.A. Customer origin: AS271403 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: not_found # No ROAs found, or RPKI validation not enabled for source route: 181.189.48.0/24 descr: CLARO S.A. Customer origin: AS271403 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20240410 source: RADB last-modified: 2024-04-10T17:33:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 181.189.49.0/24 descr: CLARO S.A. Customer origin: AS271403 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20240410 source: RADB last-modified: 2024-04-10T17:33:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 181.189.50.0/23 descr: CLARO S.A. Customer origin: AS271403 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20221104 source: RADB last-modified: 2023-11-13T16:13:06Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 181.189.50.0/24 descr: CLARO S.A. Customer origin: AS271403 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20240401 source: RADB last-modified: 2024-04-01T17:11:44Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 181.189.51.0/24 descr: CLARO S.A. Customer origin: AS271403 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20221104 source: RADB last-modified: 2023-11-13T16:13:06Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:7af8::/32 origin: AS271403 remarks: Auto-created by TC IRR from NIC.br and RIPE RIS data notify: contato [at] nptelecom.net.br mnt-by: MAINT-AS271403 source: TC last-modified: 2021-07-14T13:43:39Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:7af8::/32 descr: CLARO S.A. Customer origin: AS271403 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210914 source: RADB last-modified: 2023-11-13T16:08:13Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:7af8:c000::/34 descr: CLARO S.A. Customer origin: AS271403 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20231219 source: RADB last-modified: 2023-12-19T14:55:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source