These entries are queried from radb.net using whois, you can try my project getting these.
:AS-PROMTELECOM as-set: AS-Promtelecom descr: OJSC Promtelecom tech-c: DUMY-RIPE admin-c: DUMY-RIPE mnt-by: PROMTELECOM-MNT members: AS196638 members: AS41875 members: AS197643 members: AS15800 members: AS44125 notify: noc [at] promtele.com created: 2009-11-24T13:44:22Z last-modified: 2023-11-09T06:49:50Z 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: ****************************