These entries are queried from radb.net using whois, you can try my project getting these.
:AS22555 route: 162.251.156.0/22 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS22555 notify: ipservices [at] columbus-networks.com mnt-by: MAINT-AS23520 changed: rprudhomme [at] columbus-networks.com 20160728 source: RADB last-modified: 2023-11-13T15:56:01Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 162.251.156.0/24 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS22555 notify: ipservices [at] columbus-networks.com mnt-by: MAINT-AS23520 changed: jtrespalacios [at] columbus-networks.com 20140203 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: 162.251.157.0/24 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS22555 notify: ipservices [at] columbus-networks.com mnt-by: MAINT-AS23520 changed: jtrespalacios [at] columbus-networks.com 20140203 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: 162.251.158.0/24 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS22555 notify: ipservices [at] columbus-networks.com mnt-by: MAINT-AS23520 changed: respinosa [at] columbus-networks.com 20140609 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: 162.251.159.0/24 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS22555 notify: ipservices [at] columbus-networks.com mnt-by: MAINT-AS23520 changed: respinosa [at] columbus-networks.com 20140609 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: 209.91.231.0/24 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS22555 mnt-by: MAINT-AS23520 changed: agonzalez [at] columbus-networks.com 20131226 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: 209.91.243.0/24 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS22555 mnt-by: MAINT-AS23520 changed: agonzalez [at] columbus-networks.com 20131226 source: RADB last-modified: 2023-11-13T15:55:49Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source