These entries are queried from radb.net using whois, you can try my project getting these.
:AS-NET1OUT as-set: AS-NET1OUT descr: NET1 Ltd. members: AS43561 members: AS57122 members: AS35464 members: AS29244 members: AS44564 members: AS12962 members: AS47928 members: AS196738 members: AS196807 members: AS196801 members: AS39683 members: AS28820 members: AS31014 members: AS42100 members: AS34653 members: AS198202 members: AS198765 members: AS59709 members: AS21057 members: AS200033 members: AS199132 members: AS28873 members: AS201583 members: AS33825 members: AS35761 members: AS202737 members: AS202843 members: AS50837 members: AS29084 members: AS204469 members: AS210299 members: AS198941 members: AS35011 members: AS42398 members: AS21433 members: AS57840 members: AS206511 tech-c: DUMY-RIPE admin-c: DUMY-RIPE mnt-by: MNT-NET1 created: 2007-11-21T15:27:54Z last-modified: 2022-03-21T12:09:50Z 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: ****************************