These entries are queried from radb.net using whois, you can try my project getting these.
:AS267521 route: 38.10.96.0/22 origin: AS267521 descr: Route Registered for Cogent Communications Customer GONCALVES INFORMATICA E TELECOMUNICACOES LTDA geoidx: US mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com 20220822 #16:49:20Z source: RADB last-modified: 2023-11-13T16:12:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 201.182.48.0/22 descr: ULTRANET NETWORK origin: AS267521 notify: hostmaster [at] ultranet.psi.br mnt-by: MAINT-AS267521 changed: noc [at] ultranet.psi.br 20220923 source: TC last-modified: 2022-09-23T14:41:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 201.182.48.0/22 descr: G8 Customer Proxy Route origin: AS267521 mnt-by: MAINT-AS28329 changed: no-reply [at] g8.net.br 20201214 source: RADB last-modified: 2023-11-13T16:03:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 201.182.48.0/23 descr: ULTRANET NETWORK origin: AS267521 notify: hostmaster [at] ultranet.psi.br mnt-by: MAINT-AS267521 changed: noc [at] ultranet.psi.br 20211011 source: TC last-modified: 2021-10-11T15:28:20Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 201.182.48.0/24 descr: ULTRANET NETWORK origin: AS267521 notify: hostmaster [at] ultranet.psi.br mnt-by: MAINT-AS267521 changed: noc [at] ultranet.psi.br 20211011 source: TC last-modified: 2021-10-11T15:28:20Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 201.182.49.0/24 descr: ULTRANET NETWORK origin: AS267521 notify: hostmaster [at] ultranet.psi.br mnt-by: MAINT-AS267521 changed: noc [at] ultranet.psi.br 20211011 source: TC last-modified: 2021-10-11T15:28:20Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 201.182.50.0/23 descr: ULTRANET NETWORK origin: AS267521 notify: hostmaster [at] ultranet.psi.br mnt-by: MAINT-AS267521 changed: noc [at] ultranet.psi.br 20211011 source: TC last-modified: 2021-10-11T15:28:20Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 201.182.50.0/24 descr: ULTRANET NETWORK origin: AS267521 notify: hostmaster [at] ultranet.psi.br mnt-by: MAINT-AS267521 changed: noc [at] ultranet.psi.br 20211011 source: TC last-modified: 2021-10-11T15:28:20Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 201.182.51.0/24 descr: ULTRANET NETWORK origin: AS267521 notify: hostmaster [at] ultranet.psi.br mnt-by: MAINT-AS267521 changed: noc [at] ultranet.psi.br 20211011 source: TC last-modified: 2021-10-11T15:28:20Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:42b8::/32 descr: ULTRANET NETWORK origin: AS267521 notify: hostmaster [at] ultranet.psi.br mnt-by: MAINT-AS267521 changed: noc [at] ultranet.psi.br 20211228 source: TC last-modified: 2021-12-28T20:18:30Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:42b8::/32 descr: G8 Customer Proxy Route origin: AS267521 mnt-by: MAINT-AS28329 changed: no-reply [at] g8.net.br 20201214 source: RADB last-modified: 2023-11-13T16:03:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:42b8::/34 descr: ULTRANET NETWORK origin: AS267521 notify: hostmaster [at] ultranet.psi.br mnt-by: MAINT-AS267521 changed: noc [at] ultranet.psi.br 20211228 source: TC last-modified: 2021-12-28T20:18:30Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:42b8:4000::/34 descr: ULTRANET NETWORK origin: AS267521 notify: hostmaster [at] ultranet.psi.br mnt-by: MAINT-AS267521 changed: noc [at] ultranet.psi.br 20211228 source: TC last-modified: 2021-12-28T20:18:30Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:42b8:8000::/34 descr: ULTRANET NETWORK origin: AS267521 notify: hostmaster [at] ultranet.psi.br mnt-by: MAINT-AS267521 changed: noc [at] ultranet.psi.br 20211228 source: TC last-modified: 2021-12-28T20:18:30Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:42b8:c000::/34 descr: ULTRANET NETWORK origin: AS267521 notify: hostmaster [at] ultranet.psi.br mnt-by: MAINT-AS267521 changed: noc [at] ultranet.psi.br 20211228 source: TC last-modified: 2021-12-28T20:18:30Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source