These entries are queried from radb.net using whois, you can try my project getting these.
:AS61165 route: 146.19.252.0/24 origin: AS61165 mnt-by: lir-us-mountiela-1-MNT created: 2024-01-10T11:10:58Z last-modified: 2024-01-10T11:10:58Z 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