These entries are queried from radb.net using whois, you can try my project getting these.
:AS394491 route: 45.45.252.0/24 origin: AS394491 descr: Korzo Inc. 228 Hamilton Ave 3rd Floor Palo Alto CA 94301 United States admin-c: KORZO-ARIN tech-c: KORZO-ARIN mnt-by: MNT-KORZO created: 2023-12-28T00:56:32Z last-modified: 2023-12-28T00:56:32Z source: ARIN rpki-ov-state: valid route: 45.45.253.0/24 origin: AS394491 descr: Korzo Inc. 228 Hamilton Ave 3rd Floor Palo Alto CA 94301 United States admin-c: KORZO-ARIN tech-c: KORZO-ARIN mnt-by: MNT-KORZO created: 2023-12-28T00:56:54Z last-modified: 2023-12-28T00:56:54Z source: ARIN rpki-ov-state: valid route: 45.45.254.0/24 origin: AS394491 descr: Korzo Inc. 228 Hamilton Ave 3rd Floor Palo Alto CA 94301 United States admin-c: KORZO-ARIN tech-c: KORZO-ARIN mnt-by: MNT-KORZO created: 2023-12-28T00:57:19Z last-modified: 2023-12-28T00:57:19Z source: ARIN rpki-ov-state: valid route: 45.45.255.0/24 origin: AS394491 descr: Korzo Inc. 228 Hamilton Ave 3rd Floor Palo Alto CA 94301 United States admin-c: KORZO-ARIN tech-c: KORZO-ARIN mnt-by: MNT-KORZO created: 2023-12-28T00:57:42Z last-modified: 2023-12-28T00:57:42Z source: ARIN rpki-ov-state: valid