These entries are queried from radb.net using whois, you can try my project getting these.
:AS-IMPULS as-set: AS-IMPULS descr: Ltd. "SPA"Impulse" descr: Perm,RUSSIA members: AS8775 members: AS13296 members: AS31656 members: AS41034 members: AS-KSINVEST members: AS61382 members: AS58155 members: AS57842 members: AS60856 members: AS41846 members: AS60290 members: AS198774 members: AS-EMNET members: AS201231 members: AS48441 members: AS42597 members: AS15454 members: AS48080 members: AS42899 members: AS29303 members: as-permintercom members: AS202058 admin-c: DUMY-RIPE tech-c: DUMY-RIPE mnt-by: IMPULS-RIPE-MNT created: 2007-03-20T12:23:04Z last-modified: 2024-01-10T05:50:00Z 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: ****************************