These entries are queried from radb.net using whois, you can try my project getting these.
:AS399503 route: 38.121.118.0/24 origin: AS399503 descr: Route Object for Cogent Communications Customer - Dice Carrier Services LLC geoidx: US mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com 20210406 #13:22:24Z source: RADB last-modified: 2023-11-13T16:05:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 38.121.119.0/24 origin: AS399503 descr: Route Object for Cogent Communications Customer - Dice Carrier Services LLC geoidx: US mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com 20210406 #13:22:55Z source: RADB last-modified: 2023-11-13T16:05:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source