These entries are queried from radb.net using whois, you can try my project getting these.
:AS264919 route: 168.228.228.0/22 descr: ITX-RBC origin: AS264919 mnt-by: MAINT-AS18678 changed: noc [at] internexa.com 20180518 #12:29:50Z source: RADB last-modified: 2023-11-13T15:53:40Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 168.228.228.0/22 descr: ULTRACEU LTDA origin: AS264919 notify: milton.soares [at] ultraceu.com.br mnt-by: MAINT-AS264919 changed: gleber [at] gvnetwork.com.br 20220310 source: TC last-modified: 2022-03-10T14:07:56Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 168.228.228.0/23 descr: ULTRACEU LTDA origin: AS264919 notify: milton.soares [at] ultraceu.com.br mnt-by: MAINT-AS264919 changed: gleber [at] gvnetwork.com.br 20220310 source: TC last-modified: 2022-03-10T14:07:56Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 168.228.228.0/24 descr: ULTRACEU LTDA origin: AS264919 notify: milton.soares [at] ultraceu.com.br mnt-by: MAINT-AS264919 changed: gleber [at] gvnetwork.com.br 20220310 source: TC last-modified: 2022-03-10T14:07:56Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 168.228.229.0/24 descr: ULTRACEU LTDA origin: AS264919 notify: milton.soares [at] ultraceu.com.br mnt-by: MAINT-AS264919 changed: gleber [at] gvnetwork.com.br 20220310 source: TC last-modified: 2022-03-10T14:07:56Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 168.228.230.0/23 descr: ULTRACEU LTDA origin: AS264919 notify: milton.soares [at] ultraceu.com.br mnt-by: MAINT-AS264919 changed: gleber [at] gvnetwork.com.br 20220310 source: TC last-modified: 2022-03-10T14:07:56Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 168.228.230.0/24 descr: ULTRACEU LTDA origin: AS264919 notify: milton.soares [at] ultraceu.com.br mnt-by: MAINT-AS264919 changed: gleber [at] gvnetwork.com.br 20220310 source: TC last-modified: 2022-03-10T14:07:56Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 168.228.231.0/24 descr: ULTRACEU LTDA origin: AS264919 notify: milton.soares [at] ultraceu.com.br mnt-by: MAINT-AS264919 changed: gleber [at] gvnetwork.com.br 20220310 source: TC last-modified: 2022-03-10T14:07:56Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:2fe4::/32 descr: ULTRACEU LTDA origin: AS264919 notify: milton.soares [at] ultraceu.com.br mnt-by: MAINT-AS264919 changed: gleber [at] gvnetwork.com.br 20220310 source: TC last-modified: 2022-03-10T14:09:22Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:2fe4::/32 descr: ITX-RBC origin: AS264919 mnt-by: MAINT-AS18678 changed: noc [at] internexa.com 20180518 #12:30:22Z source: RADB last-modified: 2023-11-13T15:53:40Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source