These entries are queried from radb.net using whois, you can try my project getting these.
:AS-SIBNET as-set: AS-SIBNET descr: ASes routed by RU.SIBNET remarks: members: AS41440:AS-SIBIRTELECOM remarks: + members: AS3216 members: AS5567 members: AS8848 members: AS16345 members: AS20490 members: AS20977 members: AS21311 members: AS21383 members: AS21483 members: AS25549 members: AS28696 members: AS28884 members: AS29175 members: AS29407 members: AS30788 members: AS30928 members: AS31200 members: AS31539 members: AS33991 members: AS34034 members: AS34879 members: AS35389 members: AS39258 members: AS39530 members: AS39586 members: AS39735 members: AS39811 members: AS41330 members: AS41440 members: AS41560 members: AS41654 members: AS42091 members: AS42192 members: AS42408 members: AS42995 members: AS43053 members: AS43274 members: AS43677 members: AS43552 members: AS44151 members: AS44296 members: AS44636 members: AS45023 members: AS47117 members: AS47905 members: AS48032 members: AS48044 members: AS48055 members: AS48302 members: AS48507 members: AS50147 members: AS50282 members: AS50427 members: AS50439 members: AS50754 members: AS50787 members: AS50918 members: AS51086 members: AS51181 members: AS51289 members: AS51612 members: AS51809 members: AS51838 members: AS56341 members: AS56854 members: AS56970 members: AS57339 members: AS57575 members: AS57767 members: AS57827 members: AS58105 members: AS58187 members: AS60556 members: AS61133 members: AS61407 members: AS196747 members: AS196812 members: AS196991 members: AS197258 members: AS197292 members: AS197880 members: AS198021 members: AS198212 members: AS198805 members: AS-DIN members: AS-ETK members: AS-IRTEL members: AS-KRASNET members: AS-KUZBASSNET-SET members: AS-OMSKELECOM-SET members: AS-RISP members: AS-RDTC members: AS-RUNTK-SET members: AS-STBUR members: AS-SOVINTEL-KRSK members: AS-LOGICSET members: AS-TEHNOSET members: AS-TELEOS-1 members: AS-EFFORTEL-KEM members: AS-WEACOM members: AS-MEGACOM remarks: === IX === members: AS44310 members: AS48100 remarks: admin-c: DUMY-RIPE tech-c: DUMY-RIPE mnt-by: NSOELSV-NCC notify: lir [at] ncc.sibirtelecom.ru created: 2003-08-14T05:32:43Z last-modified: 2021-11-23T07:17:13Z 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: ****************************