These entries are queried from radb.net using whois, you can try my project getting these.
:AS12846 route: 90.188.0.0/20 descr: Allocation for Altay regional branch of OJSC "Sibirtelecom" origin: AS12846 mnt-by: ALTAITELECOM-RIPE-MNT created: 2006-12-20T05:29:24Z last-modified: 2006-12-20T05:29:24Z 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: 90.188.16.0/20 descr: Allocation for ALTAY regional branche of the JSC Sibirtelecom origin: AS12846 mnt-by: ALTAITELECOM-RIPE-MNT created: 2007-11-14T04:19:02Z last-modified: 2007-11-14T04:19:02Z 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: 194.150.128.0/19 descr: Altaitelecom networks origin: AS12846 mnt-by: ROSTELECOM-MNT created: 2005-08-23T06:47:14Z last-modified: 2023-06-28T12:11:31Z 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: 212.94.96.0/19 descr: ALTAITELECOM Address Block origin: AS12846 notify: ab [at] ab.ru mnt-by: ALTAITELECOM-RIPE-MNT created: 1970-01-01T00:00:00Z last-modified: 2001-09-22T09:33:04Z 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