These entries are queried from radb.net using whois, you can try my project getting these.
:AS272588 route: 204.137.167.0/24 origin: AS272588 descr: Route Registered for Cogent Communications Customer - MGM TELECOM COMUNICACAO LTDA geoidx: BR mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com 20220224 #09:11:10Z source: RADB last-modified: 2023-11-13T16:09:24Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:8594::/32 origin: AS272588 remarks: Auto-created by TC IRR from NIC.br and RIPE RIS data notify: mgmtelecombr [at] gmail.com mnt-by: MAINT-AS272588 source: TC last-modified: 2022-02-02T12:02:12Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:8594::/32 descr: CLARO S.A. Customer origin: AS272588 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20220311 source: RADB last-modified: 2023-11-13T16:10:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source