These entries are queried from radb.net using whois, you can try my project getting these.
:AS14638 route: 24.41.128.0/17 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14638 notify: ipservices [at] columbus-networks.com mnt-by: MAINT-AS23520 changed: rprudhomme [at] columbus-networks.com 20160527 source: RADB last-modified: 2023-11-13T15:55:50Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 24.42.0.0/18 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14638 notify: ipservices [at] columbus.co mnt-by: MAINT-AS23520 changed: gcastro [at] columbus.co 20150309 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: 24.50.192.0/18 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14638 notify: ipservices [at] columbus.co mnt-by: MAINT-AS23520 changed: gcastro [at] columbus.co 20150309 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: 24.50.192.0/20 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14638 mnt-by: MAINT-AS23520 changed: dherrera [at] columbus-networks.com 20100511 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: 24.50.224.0/20 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14638 mnt-by: MAINT-AS23520 changed: dherrera [at] columbus-networks.com 20100511 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: 24.138.192.0/18 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14638 notify: ipservices [at] columbus-networks.com mnt-by: MAINT-AS23520 changed: rprudhomme [at] columbus-networks.com 20160527 source: RADB last-modified: 2023-11-13T15:55:50Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 24.139.128.0/17 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14638 notify: ipservices [at] columbus-networks.com mnt-by: MAINT-AS23520 changed: rprudhomme [at] columbus-networks.com 20160527 source: RADB last-modified: 2023-11-13T15:55:50Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 24.139.224.0/19 descr: PNAP-MIA asurnet route origin: AS14638 mnt-by: MAINT-AS1828 changed: bkallinen [at] internap.com 20070828 source: RADB last-modified: 2023-11-13T16:14:13Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 24.171.192.0/18 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14638 notify: ipservices [at] columbus-networks.com mnt-by: MAINT-AS23520 changed: rprudhomme [at] columbus-networks.com 20160527 source: RADB last-modified: 2023-11-13T15:55:50Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 24.171.192.0/19 descr: PNAP-MIA asurnet route origin: AS14638 mnt-by: MAINT-AS1828 changed: bkallinen [at] internap.com 20070828 source: RADB last-modified: 2023-11-13T16:14:13Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 67.230.87.0/24 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14638 notify: ipservices [at] cwc.com mnt-by: MAINT-AS23520 changed: giovanna.castro [at] cwc.com 20220412 source: RADB last-modified: 2023-11-13T16:10:51Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 104.244.180.0/22 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14638 notify: ipservices [at] columbus-networks.com mnt-by: MAINT-AS23520 changed: rprudhomme [at] columbus-networks.com 20160527 source: RADB last-modified: 2023-11-13T15:55:50Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 172.85.120.0/22 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14638 notify: ipservices [at] columbus-networks.com mnt-by: MAINT-AS23520 changed: rprudhomme [at] columbus-networks.com 20160527 source: RADB last-modified: 2023-11-13T15:55:50Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2606:6a40::/32 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14638 notify: ipservices [at] cwc.com mnt-by: MAINT-AS23520 changed: giovanna.castro [at] cwc.com 20230117 source: RADB last-modified: 2023-11-13T16:13:30Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2606:6a40::/44 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS14638 notify: ipservices [at] columbus.co mnt-by: MAINT-AS23520 changed: rafael.espinosa [at] cwc.com 20211027 source: RADB last-modified: 2023-11-13T16:08:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source