These entries are queried from radb.net using whois, you can try my project getting these.
:AS271931 route: 38.50.40.0/22 origin: AS271931 descr: Route Registered for Cogent Communications Customer MAO CABLE VISION, S.R.L (Medrano Central Connections SRL) geoidx: US mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com 20220516 #15:06:02Z source: RADB last-modified: 2023-11-13T16:11:06Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 181.233.116.0/22 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS271931 notify: ipservices [at] columbus.co mnt-by: MAINT-AS23520 changed: gersain.rendon [at] cwc.com 20211229 source: RADB last-modified: 2023-11-13T16:09:05Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2803:da10::/32 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS271931 notify: ipservices [at] columbus.co mnt-by: MAINT-AS23520 changed: jose.leiva [at] cwc.com 20210714 source: RADB last-modified: 2023-11-13T16:07:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source