These entries are queried from radb.net using whois, you can try my project getting these.
:AS-SUPERNETWORK as-set: AS-SUPERNETWORK descr: SuperNetwork s.r.o. announcements remarks: === SuperNetwork s.r.o. network === members: AS39392 remarks: === Customers === members: AS29583 members: AS42306:AS-EDERA members: AS49013 members: AS-DATANETWORKS members: AS-JONCZ members: AS-TKRJASEK-TRANSIT members: AS208882 members: AS199665 members: AS196684 members: AS204949 members: AS198167 members: AS-LIGHTSTORM members: AS57158 members: AS-NETAIR-TRANSIT members: AS-DOMATV members: AS47727 members: AS-SITKOM members: AS-EMAX members: AS41456 members: AS41779 members: AS-CLOUDINFRASTACK members: AS-ISPGROUP members: AS-SPRINTEL members: AS-FASTER-CZ members: AS51947 members: AS-GIN members: AS44430 members: AS-WMS members: AS41046 members: AS-JAW members: AS57279 members: AS59959:AS-SFERIA members: AS44002 members: AS36344 members: AS20723 members: AS199298 members: AS-ISPALLIANCE-CZ members: AS-IP4ISP members: AS62160 members: AS198991 members: AS43708:AS-METRONET members: AS-ENERGOTEL members: AS196843 members: AS57007 members: AS-SET-CBS members: AS31246 members: AS34820 members: AS-JABLONKACZ members: AS-WIA-CUST members: AS44489 members: AS52092 members: AS59871 members: AS204409 members: AS-INTERCONNECT-CZ members: AS34955 members: AS35214 members: AS199101 members: AS50698 members: AS196735 members: AS59970 members: AS-34093 members: AS15425 members: AS47868 members: AS62011 members: AS-PODACZ members: AS201987 members: AS-SPORKNET members: AS52176 members: AS34911 members: AS197197 members: AS62099 members: AS57287 members: AS-RADIOLAN members: AS57376 members: AS39896 members: AS197029 members: AS21030 members: AS29401 members: AS-FORTECH members: AS197674 members: AS29504 members: AS-LAM members: AS28851 members: AS61425 members: AS196943 members: AS201548 members: AS-TFNET members: AS203100 members: AS-ANEXIA members: AS47269 members: AS197307 members: AS-CONNECTPLUS members: AS206548 members: AS61296 members: AS202719 members: AS-IP-NET members: AS204007 members: AS-NORDICTELECOM members: AS-KAORA-TRANSIT members: AS-SKYLON members: AS56656 members: AS-SLOVANET members: AS-FOFRNET members: AS-SET-COOLN-TRA members: AS43248 members: AS60068 members: AS204332 members: AS202921 members: AS-INFTELE members: AS-PEAKFACTORY members: AS-NEJCZ-TRANSIT members: AS56456 members: AS206784 members: AS48131 members: AS211594 members: AS211700 members: AS-FROOT members: AS206703 members: AS-KTCZ-NET members: AS-EHAMNET members: AS206804 members: AS-DRAGON members: AS202877 members: AS206587 members: AS211816 members: AS-DPT-CUST members: AS204666 members: AS12508 members: AS-KOOPERATIVA members: AS-MSOFT-NETWORKS members: AS209369:AS-TCPRO-TRANSIT members: AS43507 members: AS209531 members: AS-AFNIC admin-c: DUMY-RIPE tech-c: DUMY-RIPE mnt-by: SUPERNETWORK-MNT created: 2006-09-01T18:25:20Z last-modified: 2024-02-05T10:03:37Z 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: ****************************