These entries are queried from radb.net using whois, you can try my project getting these.
:AS393225 route: 199.212.0.0/24 origin: AS393225 descr: American Registry for Internet Numbers PO Box 232290 Centreville VA 20120 United States admin-c: KOSTE6-ARIN tech-c: FORST20-ARIN tech-c: JEFFE114-ARIN tech-c: MJO282-ARIN tech-c: TOSCA5-ARIN mnt-by: MNT-ARINOPS created: 2020-06-11T19:39:43Z last-modified: 2023-04-25T14:10:36Z source: ARIN rpki-ov-state: valid route6: 2001:500:13::/48 origin: AS393225 descr: American Registry for Internet Numbers PO Box 232290 Centreville VA 20120 United States admin-c: KOSTE6-ARIN tech-c: FORST20-ARIN tech-c: JEFFE114-ARIN tech-c: MJO282-ARIN tech-c: TOSCA5-ARIN mnt-by: MNT-ARINOPS created: 2020-06-11T19:45:38Z last-modified: 2023-04-25T14:10:36Z source: ARIN rpki-ov-state: valid