These entries are queried from radb.net using whois, you can try my project getting these.
:AS52906 route: 177.23.56.0/21 origin: AS52906 remarks: Auto-created by TC IRR from NIC.br and RIPE RIS data notify: adm [at] voxxtelecom.com mnt-by: MAINT-AS52906 source: TC last-modified: 2022-10-28T13:20:44Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.23.56.0/21 descr: ITX-BEMOR origin: AS52906 mnt-by: MAINT-AS18678 changed: noc [at] internexa.com 20181029 #19:08:02Z source: RADB last-modified: 2023-11-13T15:55:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.23.57.0/24 descr: CLARO S.A. Customer origin: AS52906 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20200217 source: RADB last-modified: 2023-11-13T15:59:45Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.23.60.0/24 descr: CLARO S.A. Customer origin: AS52906 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20191030 source: RADB last-modified: 2023-11-13T15:58:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.23.63.0/24 descr: CLARO S.A. Customer origin: AS52906 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20200131 source: RADB last-modified: 2023-11-13T15:59:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:8740::/32 origin: AS52906 remarks: Auto-created by TC IRR from NIC.br and RIPE RIS data notify: adm [at] voxxtelecom.com mnt-by: MAINT-AS52906 source: TC last-modified: 2022-10-28T13:20:44Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source