These entries are queried from radb.net using whois, you can try my project getting these.
:AS22581 route: 64.208.21.0/24 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS22581 notify: ipservices [at] cwc.com mnt-by: MAINT-AS23520 changed: giovanna.castro [at] cwc.com 20220810 source: RADB last-modified: 2023-11-13T16:12:05Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 67.211.240.0/20 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS22581 notify: ipservices [at] cwc.com mnt-by: MAINT-AS23520 changed: giovanna.castro [at] cwc.com 20220810 source: RADB last-modified: 2023-11-13T16:12:05Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.8.64.0/22 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS22581 notify: ipservices [at] cwc.com mnt-by: MAINT-AS23520 changed: giovanna.castro [at] cwc.com 20220810 source: RADB last-modified: 2023-11-13T16:12:05Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.11.152.0/21 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS22581 notify: ipservices [at] cwc.com mnt-by: MAINT-AS23520 changed: giovanna.castro [at] cwc.com 20220810 source: RADB last-modified: 2023-11-13T16:12:05Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.49.176.0/24 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS22581 notify: ipservices [at] cwc.com mnt-by: MAINT-AS23520 changed: giovanna.castro [at] cwc.com 20220810 source: RADB last-modified: 2023-11-13T16:12:05Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.49.194.0/24 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS22581 notify: ipservices [at] cwc.com mnt-by: MAINT-AS23520 changed: giovanna.castro [at] cwc.com 20220810 source: RADB last-modified: 2023-11-13T16:12:05Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.50.124.0/24 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS22581 notify: ipservices [at] cwc.com mnt-by: MAINT-AS23520 changed: giovanna.castro [at] cwc.com 20220810 source: RADB last-modified: 2023-11-13T16:12:05Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.84.192.0/21 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS22581 notify: ipservices [at] cwc.com mnt-by: MAINT-AS23520 changed: giovanna.castro [at] cwc.com 20220810 source: RADB last-modified: 2023-11-13T16:12:05Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2607:f838::/32 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS22581 notify: ipservices [at] cwc.com mnt-by: MAINT-AS23520 changed: giovanna.castro [at] cwc.com 20220810 source: RADB last-modified: 2023-11-13T16:12:05Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source