These entries are queried from radb.net using whois, you can try my project getting these.
:AS263553 route: 170.245.80.0/22 descr: ITX-MHNET origin: AS263553 mnt-by: MAINT-AS18678 changed: noc [at] internexa.com 20181009 #13:21:45Z source: RADB last-modified: 2023-11-13T15:54:58Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.245.80.0/24 descr: CLARO S.A. Customer origin: AS263553 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20191031 source: RADB last-modified: 2023-11-13T15:58:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.245.81.0/24 descr: CLARO S.A. Customer origin: AS263553 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20191031 source: RADB last-modified: 2023-11-13T15:58:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.245.82.0/24 descr: CLARO S.A. Customer origin: AS263553 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20191031 source: RADB last-modified: 2023-11-13T15:58:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.245.83.0/24 descr: CLARO S.A. Customer origin: AS263553 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20191031 source: RADB last-modified: 2023-11-13T15:58:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 186.237.152.0/21 descr: ITX-MHNET origin: AS263553 mnt-by: MAINT-AS18678 changed: noc [at] internexa.com 20181009 #13:22:35Z source: RADB last-modified: 2023-11-13T15:54:58Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 186.237.152.0/21 origin: AS263553 remarks: Auto-created by TC IRR from NIC.br and RIPE RIS data notify: cassiomiguel [at] hotmail.com mnt-by: MAINT-AS263553 source: TC last-modified: 2024-04-10T20:37:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 186.237.152.0/22 descr: CLARO S.A. Customer origin: AS263553 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210628 source: RADB last-modified: 2023-11-13T16:07:36Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 186.237.152.0/24 descr: CLARO S.A. Customer origin: AS263553 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20191031 source: RADB last-modified: 2023-11-13T15:58:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 186.237.153.0/24 descr: CLARO S.A. Customer origin: AS263553 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20191031 source: RADB last-modified: 2023-11-13T15:58:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 186.237.154.0/24 descr: CLARO S.A. Customer origin: AS263553 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20191031 source: RADB last-modified: 2023-11-13T15:58:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 186.237.155.0/24 descr: CLARO S.A. Customer origin: AS263553 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20191031 source: RADB last-modified: 2023-11-13T15:58:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 186.237.156.0/24 descr: CLARO S.A. Customer origin: AS263553 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20191031 source: RADB last-modified: 2023-11-13T15:58:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 186.237.157.0/24 descr: CLARO S.A. Customer origin: AS263553 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20191031 source: RADB last-modified: 2023-11-13T15:58:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 186.237.158.0/24 descr: CLARO S.A. Customer origin: AS263553 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20191031 source: RADB last-modified: 2023-11-13T15:58:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 186.237.159.0/24 descr: CLARO S.A. Customer origin: AS263553 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20191031 source: RADB last-modified: 2023-11-13T15:58:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:edc::/32 origin: AS263553 remarks: Auto-created by TC IRR from NIC.br and RIPE RIS data notify: cassiomiguel [at] hotmail.com mnt-by: MAINT-AS263553 source: TC last-modified: 2024-04-10T20:37:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:edc::/32 descr: Sul Internet origin: AS263553 mnt-by: MAINT-AS18678 changed: adminred [at] internexa.com 20170203 #13:53:20Z source: RADB last-modified: 2023-11-13T15:50:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source