These entries are queried from radb.net using whois, you can try my project getting these.
:AS263973 route: 138.255.124.0/22 descr: CLARO S.A. Customer origin: AS263973 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20231019 source: RADB last-modified: 2023-11-13T16:19:05Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.255.124.0/22 descr: JAGUARINET origin: AS263973 mnt-by: MAINT-AS263973 changed: helysonoliveira [at] nexthop.solutions 20221222 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.255.125.0/24 descr: CLARO S.A. Customer origin: AS263973 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20201111 source: RADB last-modified: 2023-11-13T16:02:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:28a8::/32 descr: This is a Commcorp Telecom customer proxy route object that was created because no existing route object with the same origin was found. Please contact noc [at] commcorp.com.br if you have any questions regarding this object. origin: AS263973 mnt-by: MAINT-AS14840 changed: gacosta [at] commcorp.com.br 20151028 #11:12:00Z source: RADB last-modified: 2023-11-13T15:48:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:28a8::/33 descr: CLARO S.A. Customer origin: AS263973 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210503 source: RADB last-modified: 2023-11-13T16:05:31Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:28a8:8000::/33 descr: CLARO S.A. Customer origin: AS263973 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210503 source: RADB last-modified: 2023-11-13T16:05:31Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source