These entries are queried from radb.net using whois, you can try my project getting these.
:AS267120 route: 38.252.80.0/24 origin: AS267120 descr: Route Registered for Cogent Communications Customer - REAL NET TELECOMUNICACOES LTDA geoidx: BR mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com 20230717 #16:06:16Z source: RADB last-modified: 2023-11-13T16:17:47Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 45.229.156.0/22 descr: BR NET LTDA origin: AS267120 notify: noc [at] brnet.psi.br mnt-by: MAINT-AS267120 changed: noc [at] brnet.psi.br 20240207 source: TC last-modified: 2024-02-07T17:38:31Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 45.229.156.0/22 descr: CLARO S.A. Customer origin: AS267120 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20230824 source: RADB last-modified: 2023-11-13T16:18:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 45.229.156.0/23 descr: BR NET LTDA origin: AS267120 notify: noc [at] brnet.psi.br mnt-by: MAINT-AS267120 changed: db-admin [at] bgp.net.br 20240207 source: TC last-modified: 2024-02-07T17:38:31Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 45.229.158.0/23 descr: BR NET LTDA origin: AS267120 notify: noc [at] brnet.psi.br mnt-by: MAINT-AS267120 changed: db-admin [at] bgp.net.br 20240207 source: TC last-modified: 2024-02-07T17:38:31Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:486c::/32 descr: BR NET LTDA origin: AS267120 notify: noc [at] brnet.psi.br mnt-by: MAINT-AS267120 changed: noc [at] brnet.psi.br 20240207 source: TC last-modified: 2024-02-07T17:50:20Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:486c::/32 descr: Cliente do Cliente Giganet origin: AS267120 remarks: AS PATH 267613 263405 267120 remarks: Processamento corretivo v2 notify: coreweb_tier2 [at] eletronet.com notify: filtrosbgpoperadoras [at] eletronet.com mnt-by: MAINT-AS267613 changed: guilherme.cecilio [at] eletronet.com 20190531 #21:09:09Z source: RADB last-modified: 2023-11-13T15:56:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source