These entries are queried from radb.net using whois, you can try my project getting these.
:AS52683 route: 177.73.8.0/21 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: AS52683 mnt-by: MAINT-AS14840 changed: gacosta [at] commcorp.com.br 20200721 source: RADB last-modified: 2023-11-13T16:01:14Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.73.8.0/22 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: AS52683 mnt-by: MAINT-AS14840 changed: gacosta [at] commcorp.com.br 20151028 #11:13:29Z source: RADB last-modified: 2023-11-13T15:48:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.73.12.0/22 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: AS52683 mnt-by: MAINT-AS14840 changed: gacosta [at] commcorp.com.br 20151028 #11:13:29Z 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: 2804:10f4::/32 descr: CLARO S.A. Customer origin: AS52683 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210913 source: RADB last-modified: 2023-11-13T16:08:13Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source