These entries are queried from radb.net using whois, you can try my project getting these.
:AS266519 route: 170.245.8.0/22 descr: ITX-GRUPOG1 origin: AS266519 mnt-by: MAINT-AS18678 changed: noc [at] internexa.com 20180817 #19:13:40Z source: RADB last-modified: 2023-11-13T15:54:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.245.8.0/22 descr: NEW RO PROVERADIO by CSTELECOM origin: AS266519 remarks: New Prefixes from 3rd from CSTELECOM mnt-by: MAINT-BITTEC changed: jefferson.bianco [at] bit-tec.com.br 20190805 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.245.8.0/22 origin: AS266519 remarks: Auto-created by TC IRR from NIC.br and RIPE RIS data notify: contato [at] proveradio.com.br mnt-by: MAINT-AS266519 source: TC last-modified: 2022-10-21T19:07:31Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.245.8.0/23 descr: PROVERADIO TELECOM origin: AS266519 notify: regis [at] nzm.net.br mnt-by: MAINT-AS266519 changed: regis [at] nzm.net.br 20221021 source: TC last-modified: 2022-10-21T19:23:39Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.245.8.0/23 descr: NEW RO PROVERADIO by CSTELECOM origin: AS266519 remarks: New Prefixes from 3rd from CSTELECOM mnt-by: MAINT-BITTEC changed: jefferson.bianco [at] bit-tec.com.br 20190805 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.245.8.0/24 descr: PROVERADIO TELECOM origin: AS266519 notify: regis [at] nzm.net.br mnt-by: MAINT-AS266519 changed: regis [at] nzm.net.br 20221021 source: TC last-modified: 2022-10-21T19:23:39Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.245.8.0/24 descr: NEW RO PROVERADIO by CSTELECOM origin: AS266519 remarks: New Prefixes from 3rd from CSTELECOM mnt-by: MAINT-BITTEC changed: jefferson.bianco [at] bit-tec.com.br 20190805 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.245.9.0/24 descr: NEW RO PROVERADIO by CSTELECOM origin: AS266519 remarks: New Prefixes from 3rd from CSTELECOM mnt-by: MAINT-BITTEC changed: jefferson.bianco [at] bit-tec.com.br 20190805 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.245.9.0/24 descr: PROVERADIO TELECOM origin: AS266519 notify: regis [at] nzm.net.br mnt-by: MAINT-AS266519 changed: regis [at] nzm.net.br 20221021 source: TC last-modified: 2022-10-21T19:23:39Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.245.10.0/23 descr: PROVERADIO TELECOM origin: AS266519 notify: regis [at] nzm.net.br mnt-by: MAINT-AS266519 changed: regis [at] nzm.net.br 20221021 source: TC last-modified: 2022-10-21T19:23:39Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.245.10.0/23 descr: NEW RO PROVERADIO by CSTELECOM origin: AS266519 remarks: New Prefixes from 3rd from CSTELECOM mnt-by: MAINT-BITTEC changed: jefferson.bianco [at] bit-tec.com.br 20190805 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.245.10.0/24 descr: CLARO S.A. Customer origin: AS266519 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20201030 source: RADB last-modified: 2023-11-13T16:02:41Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.245.10.0/24 descr: NEW RO PROVERADIO by CSTELECOM origin: AS266519 remarks: New Prefixes from 3rd from CSTELECOM mnt-by: MAINT-BITTEC changed: jefferson.bianco [at] bit-tec.com.br 20190805 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.245.10.0/24 descr: PROVERADIO TELECOM origin: AS266519 notify: regis [at] nzm.net.br mnt-by: MAINT-AS266519 changed: regis [at] nzm.net.br 20221021 source: TC last-modified: 2022-10-21T19:23:39Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.245.11.0/24 descr: NEW RO PROVERADIO by CSTELECOM origin: AS266519 remarks: New Prefixes from 3rd from CSTELECOM mnt-by: MAINT-BITTEC changed: jefferson.bianco [at] bit-tec.com.br 20190805 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.245.11.0/24 descr: PROVERADIO TELECOM origin: AS266519 notify: regis [at] nzm.net.br mnt-by: MAINT-AS266519 changed: regis [at] nzm.net.br 20221021 source: TC last-modified: 2022-10-21T19:23:39Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.245.11.0/24 descr: CLARO S.A. Customer origin: AS266519 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20201030 source: RADB last-modified: 2023-11-13T16:02:41Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:3908::/32 descr: NEW RO PROVERADIO by CSTELECOM origin: AS266519 remarks: New Prefixes from 3rd from CSTELECOM mnt-by: MAINT-BITTEC changed: jefferson.bianco [at] bit-tec.com.br 20190805 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:3908::/32 descr: ITX-GRUPOG1 origin: AS266519 mnt-by: MAINT-AS18678 changed: noc [at] internexa.com 20180817 #19:14:10Z source: RADB last-modified: 2023-11-13T15:54:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:3908::/32 origin: AS266519 remarks: Auto-created by TC IRR from NIC.br and RIPE RIS data notify: contato [at] proveradio.com.br mnt-by: MAINT-AS266519 source: TC last-modified: 2022-10-21T19:07:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:3908::/33 descr: NEW RO PROVERADIO by CSTELECOM origin: AS266519 remarks: New Prefixes from 3rd from CSTELECOM mnt-by: MAINT-BITTEC changed: jefferson.bianco [at] bit-tec.com.br 20190805 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:3908:8000::/33 descr: NEW RO PROVERADIO by CSTELECOM origin: AS266519 remarks: New Prefixes from 3rd from CSTELECOM mnt-by: MAINT-BITTEC changed: jefferson.bianco [at] bit-tec.com.br 20190805 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:3908:f000::/36 descr: CLARO S.A. Customer origin: AS266519 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20201214 source: RADB last-modified: 2023-11-13T16:03:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source