These entries are queried from radb.net using whois, you can try my project getting these.
:AS63104 route: 38.77.38.0/23 origin: AS63104 descr: Route Registered for Cogent Communications Customer Mohawk Networks mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com 20200624 #13:52:11Z source: RADB last-modified: 2023-11-13T16:01:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 38.77.50.0/23 origin: AS63104 descr: Route Registered for Cogent Communications Customer - Mohawk Networks, LLC mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com 20190521 #15:22:51Z source: RADB last-modified: 2023-11-13T15:56:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 38.121.196.0/22 origin: AS63104 descr: Route Registered for Cogent Communications Customer Mohawk Networks, LLC mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com 20210315 #10:02:43Z source: RADB last-modified: 2023-11-13T16:05:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source