These entries are queried from radb.net using whois, you can try my project getting these.
:AS-DCN as-set: as-dcn descr: AS DCN members: AS34916 members: AS-LANCONECT members: AS38947 members: AS35161 members: AS42404 members: AS56684 tech-c: DUMY-RIPE admin-c: DUMY-RIPE mnt-by: dnet-mnt created: 2006-08-26T08:29:48Z last-modified: 2019-03-29T19:25:10Z 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: **************************** as-set: AS-DCN descr: MAINT-AS26794 members: AS26794,AS32719,AS63414,AS32809,AS11138,AS33178,AS-SRT,AS62688,AS18780,AS6621,AS14511,AS18780,AS14090,AS40569,AS4578,AS394008,AS26823,AS36374,AS26823,AS-27539,AS23295,AS29744,AS19530,AS30705,AS400439,AS23485,AS64226,AS394321,AS6263,AS40434,AS25866,AS13660,AS55105,AS46567,AS-STELLAR-ASSOCIATION,AS31758:AS-ALL,AS-53284,AS-27539:AS-53284 mnt-by: MAINT-AS26794 changed: sdacar [at] dakotacarrier.com 20230719 #14:58:25Z source: RADB last-modified: 2023-11-13T16:17:48Z