These entries are queried from radb.net using whois, you can try my project getting these.
:AS-NETGUARDBG as-set: AS-NETGUARDBG descr: NETGUARD Ltd. (AS39251) members: AS39251 members: AS42446 members: AS44017 members: AS44796 members: AS47624 members: AS15941 members: AS20818 members: AS41922 members: AS44814 members: AS202129 members: AS-LINKPLUS admin-c: DUMY-RIPE tech-c: DUMY-RIPE mnt-by: NETGUARDBG-MNT created: 2008-02-12T21:04:54Z last-modified: 2021-10-25T12:19:27Z 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: ****************************