These entries are queried from radb.net using whois, you can try my project getting these.
:AS398436 route: 38.57.252.0/22 origin: AS398436 descr: Route Registered for Cogent Communications Customer Olstep Inc. geoidx: US mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com 20230829 #22:13:28Z source: RADB last-modified: 2023-11-13T16:18:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 91.242.108.0/22 descr: HYPEBEASTSERVERS-20230801 origin: AS398436 mnt-by: ITNS-NET-MNT created: 2023-08-01T20:36:26Z last-modified: 2023-08-01T20:36:26Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: valid route: 107.166.12.0/22 origin: AS398436 descr: Hypebeastservers admin-c: FRYWA-ARIN tech-c: FRYWA-ARIN mnt-by: MNT-DIGIT-215 created: 2023-07-24T17:08:38Z last-modified: 2023-07-24T17:08:38Z source: ARIN rpki-ov-state: valid route6: 2604:d680:9:7::/64 origin: AS398436 mnt-by: MNT-WS-834 tech-c: NETWO9238-ARIN admin-c: NETWO9238-ARIN source: ARIN created: 2020-07-07T16:47:10Z last-modified: 2020-07-07T16:47:10Z descr: MNT-WS-834 route 2604:D680:0009:0007:0000:0000:0000:0000/64 AS398436 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source