These entries are queried from radb.net using whois, you can try my project getting these.
:AS61671 route: 131.108.52.0/22 descr: ITX-GRUPOG1 origin: AS61671 mnt-by: MAINT-AS18678 changed: noc [at] internexa.com 20180606 #17:02:56Z source: RADB last-modified: 2023-11-13T15:53:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 131.108.52.0/23 descr: CLARO S.A. Customer origin: AS61671 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20230516 source: RADB last-modified: 2023-11-13T16:17:12Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 131.108.54.0/23 descr: CLARO S.A. Customer origin: AS61671 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20230516 source: RADB last-modified: 2023-11-13T16:17:12Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:1cb8::/32 origin: AS61671 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. mnt-by: MAINT-AS14840 changed: fpgosch [at] commcorp.com.br 20200322 #05:31:36Z source: RADB last-modified: 2023-11-13T16:00:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source