These entries are queried from radb.net using whois, you can try my project getting these.
:AS17058 route: 8.3.162.0/24 origin: AS17058 descr: Proxy route object registered by Flexential for customer mnt-by: MAINT-FLEXENTIAL changed: routing [at] viawest.net 20200414 #21:21:40Z source: RADB last-modified: 2023-11-13T16:00:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 8.3.162.0/24 descr: Adding Level3 based route origin: AS17058 mnt-by: INTELLIVERSE-MNT changed: mason.eike [at] level3.com 20070102 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 12.200.78.0/23 origin: AS17058 descr: Proxy route object registered by Flexential for customer mnt-by: MAINT-FLEXENTIAL changed: routing [at] viawest.net 20200414 #21:16:05Z source: RADB last-modified: 2023-11-13T16:00:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 64.209.34.0/24 origin: AS17058 descr: Proxy route object registered by Flexential for customer mnt-by: MAINT-FLEXENTIAL changed: routing [at] viawest.net 20200414 #21:19:54Z source: RADB last-modified: 2023-11-13T16:00:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 64.213.145.0/24 origin: AS17058 descr: Proxy route object registered by Flexential for customer mnt-by: MAINT-FLEXENTIAL changed: routing [at] viawest.net 20200414 #21:20:29Z source: RADB last-modified: 2023-11-13T16:00:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.205.78.0/24 origin: AS17058 descr: Proxy route object registered by Flexential for customer mnt-by: MAINT-FLEXENTIAL changed: routing [at] viawest.net 20200414 #21:15:23Z source: RADB last-modified: 2023-11-13T16:00:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.214.83.0/24 origin: AS17058 descr: Proxy route object registered by Flexential for customer mnt-by: MAINT-FLEXENTIAL changed: routing [at] viawest.net 20200414 #21:14:15Z source: RADB last-modified: 2023-11-13T16:00:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.143.238.0/24 descr: INTELLIVERSE ROUTE origin: AS17058 mnt-by: INTELLIVERSE-MNT changed: io [at] intelliverse.com 20061021 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.143.238.0/24 origin: AS17058 descr: Proxy route object registered by Flexential for customer mnt-by: MAINT-FLEXENTIAL changed: routing [at] viawest.net 20200414 #21:18:41Z source: RADB last-modified: 2023-11-13T16:00:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.143.239.0/24 origin: AS17058 descr: Proxy route object registered by Flexential for customer mnt-by: MAINT-FLEXENTIAL changed: routing [at] viawest.net 20200414 #21:19:17Z source: RADB last-modified: 2023-11-13T16:00:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.143.239.0/24 descr: INTELLIVERSE ROUTE origin: AS17058 mnt-by: INTELLIVERSE-MNT changed: io [at] intelliverse.com 20061021 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source