These entries are queried from radb.net using whois, you can try my project getting these.
:AS13871 route: 67.235.50.0/24 descr: Proxy-registered route object origin: AS13871 remarks: NWCommnet mnt-by: MAINT-AS16713 changed: wbiggs [at] noanet.net 20180827 #01:02:22Z source: RADB last-modified: 2023-11-13T15:54:29Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.87.157.0/24 descr: Spectrum Networks proxy registration origin: AS13871 mnt-by: MAINT-AS11404 changed: john [at] vanoppen.com 20111226 #19:01:47Z source: RADB last-modified: 2023-11-13T15:51:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.97.157.0/24 descr: Proxy registration for telebyte origin: AS13871 mnt-by: MAINT-AS11404 changed: john [at] vanoppen.com 20111223 #23:26:22Z source: RADB last-modified: 2023-11-13T15:51:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 206.53.160.0/21 descr: Proxy registration for telebyte origin: AS13871 mnt-by: MAINT-AS11404 changed: john [at] vanoppen.com 20111223 #23:29:09Z source: RADB last-modified: 2023-11-13T15:51:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 206.53.160.0/24 descr: proxy registration for telebyte origin: AS13871 mnt-by: MAINT-AS11404 changed: john [at] vanoppen.com 20111223 #23:28:29Z source: RADB last-modified: 2023-11-13T15:51:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 206.53.161.0/24 descr: Spectrum Networks proxy registration origin: AS13871 mnt-by: MAINT-AS11404 changed: john [at] vanoppen.com 20111226 #19:05:08Z source: RADB last-modified: 2023-11-13T15:51:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 206.53.162.0/24 descr: Spectrum Networks proxy registration origin: AS13871 mnt-by: MAINT-AS11404 changed: john [at] vanoppen.com 20111226 #19:05:33Z source: RADB last-modified: 2023-11-13T15:51:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 206.53.163.0/24 descr: Spectrum Networks proxy registration origin: AS13871 mnt-by: MAINT-AS11404 changed: john [at] vanoppen.com 20111226 #19:06:10Z source: RADB last-modified: 2023-11-13T15:51:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 206.53.164.0/24 descr: PNAP-SEF bdhg10g customer of origin: AS13871 mnt-by: MAINT-AS1828 changed: tberglund [at] internap.com 20131115 source: RADB last-modified: 2023-11-13T16:14:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 206.53.165.0/24 descr: Spectrum Networks proxy registration origin: AS13871 mnt-by: MAINT-AS11404 changed: john [at] vanoppen.com 20111226 #19:06:55Z source: RADB last-modified: 2023-11-13T15:51:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 206.53.166.0/24 descr: Spectrum Networks proxy registration origin: AS13871 mnt-by: MAINT-AS11404 changed: john [at] vanoppen.com 20111226 #19:07:17Z source: RADB last-modified: 2023-11-13T15:51:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 206.53.167.0/24 descr: Spectrum Networks proxy registration origin: AS13871 mnt-by: MAINT-AS11404 changed: john [at] vanoppen.com 20111226 #19:08:41Z source: RADB last-modified: 2023-11-13T15:51:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.14.32.0/21 descr: Spectrum Networks proxy registration origin: AS13871 mnt-by: MAINT-AS11404 changed: john [at] vanoppen.com 20111226 #19:10:04Z source: RADB last-modified: 2023-11-13T15:51:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.14.32.0/24 descr: Spectrum Networks proxy registration origin: AS13871 mnt-by: MAINT-AS11404 changed: john [at] vanoppen.com 20111226 #19:09:33Z source: RADB last-modified: 2023-11-13T15:51:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.14.33.0/24 descr: Spectrum Networks proxy registration origin: AS13871 mnt-by: MAINT-AS11404 changed: john [at] vanoppen.com 20111226 #19:10:58Z source: RADB last-modified: 2023-11-13T15:51:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.14.34.0/24 descr: Spectrum Networks proxy registration origin: AS13871 mnt-by: MAINT-AS11404 changed: john [at] vanoppen.com 20111226 #19:11:17Z source: RADB last-modified: 2023-11-13T15:51:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.14.35.0/24 descr: PNAP-SEF bdhg10g customer of origin: AS13871 mnt-by: MAINT-AS1828 changed: tberglund [at] internap.com 20131115 source: RADB last-modified: 2023-11-13T16:14:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.14.36.0/24 descr: Spectrum Networks proxy registration origin: AS13871 mnt-by: MAINT-AS11404 changed: john [at] vanoppen.com 20111226 #19:11:37Z source: RADB last-modified: 2023-11-13T15:51:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.14.37.0/24 descr: Spectrum Networks proxy registration origin: AS13871 mnt-by: MAINT-AS11404 changed: john [at] vanoppen.com 20111226 #19:12:17Z source: RADB last-modified: 2023-11-13T15:51:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.14.38.0/24 descr: Spectrum Networks proxy registration origin: AS13871 mnt-by: MAINT-AS11404 changed: john [at] vanoppen.com 20111226 #19:12:46Z source: RADB last-modified: 2023-11-13T15:51:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.14.39.0/24 descr: Spectrum Networks proxy registration origin: AS13871 mnt-by: MAINT-AS11404 changed: john [at] vanoppen.com 20111226 #19:13:12Z source: RADB last-modified: 2023-11-13T15:51:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.7.39.0/24 descr: Spectrum Networks proxy registration origin: AS13871 mnt-by: MAINT-AS11404 changed: john [at] vanoppen.com 20111226 #19:14:58Z source: RADB last-modified: 2023-11-13T15:51:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.8.160.0/22 descr: Proxy registration origin: AS13871 mnt-by: MAINT-AS11404 changed: john [at] vanoppen.com 20111226 #17:20:38Z source: RADB last-modified: 2023-11-13T15:51:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.8.160.0/24 descr: Spectrum Networks proxy registration origin: AS13871 mnt-by: MAINT-AS11404 changed: john [at] vanoppen.com 20111226 #19:16:55Z source: RADB last-modified: 2023-11-13T15:51:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.8.161.0/24 descr: Spectrum networks proxy registration origin: AS13871 mnt-by: MAINT-AS11404 changed: john [at] vanoppen.com 20111226 #17:36:10Z source: RADB last-modified: 2023-11-13T15:51:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.8.162.0/24 descr: Spectrum Networks proxy registration origin: AS13871 mnt-by: MAINT-AS11404 changed: john [at] vanoppen.com 20111226 #19:17:39Z source: RADB last-modified: 2023-11-13T15:51:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.8.163.0/24 descr: Spectrum Networks proxy registration origin: AS13871 mnt-by: MAINT-AS11404 changed: john [at] vanoppen.com 20111226 #19:18:13Z source: RADB last-modified: 2023-11-13T15:51:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source