These entries are queried from radb.net using whois, you can try my project getting these.
:AS53083 route: 187.33.112.0/20 descr: C&M Software Alameda Rio Pardo, 27 - 06455005 - Barueri - SP origin: AS53083 mnt-by: MAINT-ASCMSW changed: leandro_souza [at] cmsoftware.com.br 20100113 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.33.112.0/20 descr: CLARO S.A. Customer origin: AS53083 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20190904 source: RADB last-modified: 2023-11-13T15:57:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.33.112.0/21 descr: CLARO S.A. Customer origin: AS53083 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210312 source: RADB last-modified: 2023-11-13T16:05:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.33.112.0/23 descr: CLARO S.A. Customer origin: AS53083 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210329 source: RADB last-modified: 2023-11-13T16:05:27Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.33.113.0/24 descr: CLARO S.A. Customer origin: AS53083 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20221114 source: RADB last-modified: 2023-11-13T16:13:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.33.114.0/23 descr: CLARO S.A. Customer origin: AS53083 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210329 source: RADB last-modified: 2023-11-13T16:05:27Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.33.120.0/21 descr: CLARO S.A. Customer origin: AS53083 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210329 source: RADB last-modified: 2023-11-13T16:05:27Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.33.124.0/24 descr: CLARO S.A. Customer origin: AS53083 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20221219 source: RADB last-modified: 2023-11-13T16:13:14Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source