These entries are queried from radb.net using whois, you can try my project getting these.
:AS14813 route: 23.236.0.0/20 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14813 notify: ipservices [at] columbus-networks.com mnt-by: MAINT-AS23520 changed: jtrespalacios [at] columbus-networks.com 20131111 source: RADB last-modified: 2023-11-13T15:55:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.170.68.0/23 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14813 notify: ipservices [at] columbus.co mnt-by: MAINT-AS23520 changed: rprudhomme [at] columbus.co 20130911 source: RADB last-modified: 2023-11-13T15:55:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.175.156.0/22 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14813 notify: ipservices [at] columbus.co mnt-by: MAINT-AS23520 changed: rprudhomme [at] columbus.co 20130911 source: RADB last-modified: 2023-11-13T15:55:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 64.210.40.0/21 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14813 notify: ipservices [at] columbus.co mnt-by: MAINT-AS23520 changed: rprudhomme [at] columbus.co 20130911 source: RADB last-modified: 2023-11-13T15:55:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 65.48.128.0/17 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14813 notify: ipservices [at] cwc.com mnt-by: MAINT-AS23520 changed: gcastro [at] cwc.com 20151030 source: RADB last-modified: 2023-11-13T15:56:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 65.166.240.0/21 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14813 notify: ipservices [at] columbus.co mnt-by: MAINT-AS23520 changed: rprudhomme [at] columbus.co 20130911 source: RADB last-modified: 2023-11-13T15:55:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 65.172.24.0/22 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14813 notify: ipservices [at] columbus.co mnt-by: MAINT-AS23520 changed: rprudhomme [at] columbus.co 20130911 source: RADB last-modified: 2023-11-13T15:55:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 69.73.192.0/18 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14813 notify: ipservices [at] cwc.com mnt-by: MAINT-AS23520 changed: gcastro [at] cwc.com 20151030 source: RADB last-modified: 2023-11-13T15:56:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 72.22.128.0/19 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14813 notify: ipservices [at] cwc.com mnt-by: MAINT-AS23520 changed: gcastro [at] cwc.com 20151030 source: RADB last-modified: 2023-11-13T15:56:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 72.51.64.0/18 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14813 notify: ipservices [at] cwc.com mnt-by: MAINT-AS23520 changed: gcastro [at] cwc.com 20151030 source: RADB last-modified: 2023-11-13T15:56:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 104.153.128.0/21 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14813 notify: ipservices [at] columbus-networks.com mnt-by: MAINT-AS23520 changed: jtrespalacios [at] columbus-networks.com 20140804 source: RADB last-modified: 2023-11-13T15:55:49Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 104.200.96.0/20 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14813 notify: ipservices [at] columbus-networks.com mnt-by: MAINT-AS23520 changed: jtrespalacios [at] columbus-networks.com 20141006 source: RADB last-modified: 2023-11-13T15:55:49Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 162.220.136.0/21 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14813 notify: ipservices [at] cwc.com mnt-by: MAINT-AS23520 changed: gcastro [at] cwc.com 20151030 source: RADB last-modified: 2023-11-13T15:56:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 162.246.104.0/21 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14813 notify: ipservices [at] columbus.co mnt-by: MAINT-AS23520 changed: grendon [at] columbus.co 20140410 source: RADB last-modified: 2023-11-13T15:56:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.214.112.0/20 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14813 notify: ipservices [at] cwc.com mnt-by: MAINT-AS23520 changed: gcastro [at] cwc.com 20151030 source: RADB last-modified: 2023-11-13T15:56:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.235.48.0/20 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14813 notify: ipservices [at] columbus.co mnt-by: MAINT-AS23520 changed: rprudhomme [at] columbus.co 20130911 source: RADB last-modified: 2023-11-13T15:55:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 196.1.160.0/20 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14813 notify: ipservices [at] cwc.com mnt-by: MAINT-AS23520 changed: gcastro [at] cwc.com 20151030 source: RADB last-modified: 2023-11-13T15:56:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.246.229.0/24 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14813 notify: ipservices [at] columbus.co mnt-by: MAINT-AS23520 changed: fospina [at] columbus.co 20151103 source: RADB last-modified: 2023-11-13T15:56:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.246.230.0/24 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14813 notify: ipservices [at] columbus.co mnt-by: MAINT-AS23520 changed: fospina [at] columbus.co 20151103 source: RADB last-modified: 2023-11-13T15:56:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.38.192.0/21 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14813 notify: ipservices [at] columbus.co mnt-by: MAINT-AS23520 changed: rprudhomme [at] columbus.co 20130911 source: RADB last-modified: 2023-11-13T15:55:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.254.104.0/21 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14813 notify: ipservices [at] cwc.com mnt-by: MAINT-AS23520 changed: gcastro [at] cwc.com 20151030 source: RADB last-modified: 2023-11-13T15:56:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.16.112.0/24 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14813 notify: ipservices [at] columbus.co mnt-by: MAINT-AS23520 changed: respinosa [at] columbus.co 20201129 source: RADB last-modified: 2023-11-13T16:03:06Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.212.240.0/21 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14813 notify: ipservices [at] columbus.co mnt-by: MAINT-AS23520 changed: rprudhomme [at] columbus.co 20130911 source: RADB last-modified: 2023-11-13T15:55:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 205.214.192.0/19 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14813 notify: ipservices [at] cwc.com mnt-by: MAINT-AS23520 changed: gcastro [at] cwc.com 20151030 source: RADB last-modified: 2023-11-13T15:56:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 205.217.244.0/24 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14813 notify: ipservices [at] cwc.com mnt-by: MAINT-AS23520 changed: giovanna.castro [at] cwc.com 20210319 source: RADB last-modified: 2023-11-13T16:05:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 205.244.148.0/22 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14813 notify: ipservices [at] columbus.co mnt-by: MAINT-AS23520 changed: rprudhomme [at] columbus.co 20130911 source: RADB last-modified: 2023-11-13T15:55:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 206.231.120.0/21 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14813 notify: ipservices [at] columbus.co mnt-by: MAINT-AS23520 changed: rprudhomme [at] columbus.co 20130911 source: RADB last-modified: 2023-11-13T15:55:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.0.96.0/21 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14813 notify: ipservices [at] columbus.co mnt-by: MAINT-AS23520 changed: rprudhomme [at] columbus.co 20130911 source: RADB last-modified: 2023-11-13T15:55:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 209.59.91.0/24 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14813 notify: ipservices [at] cwc.com mnt-by: MAINT-AS23520 changed: giovanna.castro [at] cwc.com 20201103 source: RADB last-modified: 2023-11-13T16:02:41Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.110.96.0/19 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14813 notify: ipservices [at] cwc.com mnt-by: MAINT-AS23520 changed: gcastro [at] cwc.com 20151030 source: RADB last-modified: 2023-11-13T15:56:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2600:8400::/28 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14813 notify: ipservices [at] cwc.com mnt-by: MAINT-AS23520 changed: gcastro [at] cwc.com 20160804 source: RADB last-modified: 2023-11-13T15:56:01Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source