These entries are queried from radb.net using whois, you can try my project getting these.
:AS-SIT as-set: AS-SIT descr: S-IT Informationstechnologie Betreiber GmbH & Co. KG descr: Calw, Germany members: AS39702 members: AS25419 members: AS41431 members: AS48132 members: AS52012 members: AS57607 members: AS197491 members: AS202698 members: AS203085 members: AS207404 members: AS211255 tech-c: DUMY-RIPE admin-c: DUMY-RIPE mnt-by: SIT-MNT created: 2006-04-19T20:28:27Z last-modified: 2024-03-18T12:57:27Z 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: ****************************