These entries are queried from radb.net using whois, you can try my project getting these.
:AS50517 route: 212.57.192.0/19 descr: KSU network origin: AS50517 mnt-by: NOC-KSU-MNT created: 2011-01-11T19:13:45Z last-modified: 2011-01-11T19:13:45Z 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 route: 212.57.192.0/19 descr: ITC via EMIX origin: AS50517 mnt-by: MAINT-AS8966 changed: noc [at] emix.net.ae 20160727 #16:14:32Z source: RADB last-modified: 2023-11-13T15:49:36Z rpki-ov-state: valid