These entries are queried from radb.net using whois, you can try my project getting these.
:AS263621 route: 187.73.112.0/20 descr: CLARO S.A. Customer origin: AS263621 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20180815 source: RADB last-modified: 2023-11-13T15:54:27Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.73.120.0/21 descr: CLARO S.A. Customer origin: AS263621 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20180815 source: RADB last-modified: 2023-11-13T15:54:27Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.73.121.0/24 descr: CLARO S.A. Customer origin: AS263621 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20190412 source: RADB last-modified: 2023-11-13T15:56:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2801:80:7c0::/46 descr: CLARO S.A. Customer origin: AS263621 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20180830 source: RADB last-modified: 2023-11-13T15:54:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2801:80:7c0::/48 descr: CLARO S.A. Customer origin: AS263621 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20180814 source: RADB last-modified: 2023-11-13T15:54:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source