These entries are queried from radb.net using whois, you can try my project getting these.
:AS-DATANET as-set: AS-DATANET descr: DATANET tech-c: DWA2-AP admin-c: DWA2-AP mnt-by: MAINT-DATANET-BT members: AS138529 last-modified: 2019-07-18T05:27:37Z source: APNIC as-set: AS-DATANET descr: DATANET ASes members: AS5588 members: AS3340 members: AS6790 members: AS6784 members: AS2012 members: AS8229 members: AS20742 members: AS15953 members: AS15629 members: AS8448 members: AS15566 members: AS12594 members: AS24690 members: AS12589 members: AS15520 members: AS12632 members: AS16030 members: AS9015 members: AS15471 members: AS12302 members: AS5606 members: AS8919 members: AS12301 members: AS20882 members: AS21334 members: AS6803 members: AS24791 members: AS3244 members: AS20624 members: AS25539 members: AS8358 members: AS24727 members: AS16093 members: AS16015 members: AS21209 members: AS8536 members: AS5606 members: AS8696 members: AS28728 members: AS16280 members: AS15545 members: AS30904 members: AS30917 members: AS29000 members: AS28924 members: AS34262 members: AS34059 members: AS34226 members: AS42759 members: AS42854 members: AS34588 members: AS43187 members: AS43860 members: AS47159 members: AS49090 members: AS47979 members: AS20922 members: AS30942 members: AS31297 members: AS8448 members: AS20523 members: AS42205 members: AS50261 members: AS51275 members: AS40989 members: AS35792 members: AS41694 members: AS51843 members: AS41627 members: AS47324 members: AS198223 members: AS31581 members: AS3219 members: AS8512 members: AS30904 members: AS24991 members: AS61270 members: AS47710 members: AS42185 members: AS59949 members: AS51232 members: AS197862 members: AS42120 members: AS200900 members: AS200940 members: AS202738 members: AS207255 members: AS33973 members: AS35740 members: AS201568 members: AS-ISZT members: AS-HPC-MVM members: AS-AH members: AS-23VNET members: AS-ENTERNET members: AS-INTERWARE members: AS-INTERWARE_TRANSIT members: AS-INTERWARE_BIX members: AS-INFINITY members: AS-APPNOR members: AS-ZALASZAM members: AS-INTELLIHOME members: AS-TERANET-HU tech-c: DUMY-RIPE admin-c: DUMY-RIPE mnt-by: AS3340-MNT created: 2002-06-02T17:58:44Z last-modified: 2023-11-13T13:48:27Z 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: ****************************