These entries are queried from radb.net using whois, you can try my project getting these.
:AS199110 route: 31.44.250.0/24 descr: R-18 Network origin: AS199110 mnt-by: ORTEL-MNT mnt-routes: ORTEL-MNT created: 2013-01-10T05:12:54Z last-modified: 2013-01-10T05:12:54Z 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: 31.44.251.0/24 origin: AS199110 mnt-by: AS5547-MNT mnt-by: ORTEL-MNT created: 2023-06-07T05:17:29Z last-modified: 2023-06-07T05:17:29Z 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