These entries are queried from radb.net using whois, you can try my project getting these.
:AS399899 route: 172.98.52.0/23 origin: AS399899 descr: Lightening Systems admin-c: ADMIN5996-ARIN tech-c: ADMIN5996-ARIN mnt-by: MNT-KS-531 created: 2022-03-30T04:34:34Z last-modified: 2022-03-30T04:34:34Z source: ARIN rpki-ov-state: valid route: 172.98.52.0/24 origin: AS399899 descr: Path Network, Inc. - Anycasted Proxy-Route for AS399899 mnt-by: MAINT-AS396998 notify: alex.hristov [at] path.net changed: alex.hristov [at] path.net 20230528 source: RADB last-modified: 2023-11-13T16:17:23Z rpki-ov-state: valid route: 172.98.53.0/24 origin: AS399899 descr: 172.98.53.0/24 admin-c: ADMIN5996-ARIN tech-c: ADMIN5996-ARIN mnt-by: MNT-KS-531 created: 2023-12-08T07:18:27Z last-modified: 2023-12-08T07:18:27Z source: ARIN rpki-ov-state: valid route6: 2602:fbb7::/36 origin: AS399899 descr: Lightening Systems admin-c: ADMIN5996-ARIN tech-c: ADMIN5996-ARIN mnt-by: MNT-KS-531 created: 2022-03-30T04:32:28Z last-modified: 2022-03-30T04:32:28Z source: ARIN rpki-ov-state: valid route6: 2602:fbb7:1::/48 origin: AS399899 descr: 2602:fbb7:1::/48 admin-c: ADMIN5996-ARIN tech-c: ADMIN5996-ARIN mnt-by: MNT-KS-531 created: 2023-07-19T09:00:45Z last-modified: 2023-07-19T09:00:45Z source: ARIN rpki-ov-state: valid