These entries are queried from radb.net using whois, you can try my project getting these.
:AS398960 route: 23.168.144.0/24 origin: AS398960 mnt-by: MNT-CRYOF tech-c: FDM9-ARIN admin-c: FDM9-ARIN source: ARIN created: 2020-11-06T04:35:35Z last-modified: 2020-11-06T04:35:35Z descr: MNT-CRYOF route 023.168.144.000/24 AS398960 rpki-ov-state: valid route: 23.168.145.0/24 origin: AS398960 descr: MNT-CRYOF route 023.168.145.000/24 AS398960 admin-c: FDM9-ARIN tech-c: FDM9-ARIN mnt-by: MNT-CRYOF created: 2021-05-25T22:12:30Z last-modified: 2021-05-25T22:12:30Z source: ARIN rpki-ov-state: valid route: 44.31.23.0/24 origin: AS398960 descr: AF7MH admin-c: SMITH5996-ARIN tech-c: SMITH5996-ARIN notify: hostmaster [at] ardc.net mnt-by: MAINT-ARDC changed: chris [at] ardc.net 20210729 #07:28:44Z source: RADB last-modified: 2023-11-13T16:08:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2602:808:4000::/48 origin: AS398960 mnt-by: MNT-CRYOF tech-c: FDM9-ARIN admin-c: FDM9-ARIN source: ARIN created: 2020-11-06T05:42:55Z last-modified: 2020-11-06T05:42:55Z descr: MNT-CRYOF route 2602:0808:4000:0000:0000:0000:0000:0000/48 AS398960 rpki-ov-state: valid route6: 2602:808:4002::/48 origin: AS398960 mnt-by: MNT-CRYOF descr: Cryoflesh anycast range tech-c: FDM9-ARIN admin-c: FDM9-ARIN source: ARIN created: 2020-11-06T05:40:13Z last-modified: 2020-11-06T05:40:13Z rpki-ov-state: valid route6: 2602:808:4004::/48 origin: AS398960 descr: Cryoflesh SEA1 admin-c: FDM9-ARIN tech-c: FDM9-ARIN mnt-by: MNT-CRYOF created: 2021-02-12T01:20:04Z last-modified: 2021-02-12T01:20:04Z source: ARIN rpki-ov-state: valid