These entries are queried from radb.net using whois, you can try my project getting these.
:AS-PRIMACOM as-set: AS-PRIMACOM descr: Primacom AG descr: Messeallee 2 descr: 04356 Leipzig descr: Germany descr: Technical contact: admins [at] primacom.net descr: phone +49 341 60952 473 (24/7) members: AS16202 members: AS34256 members: AS35065 members: AS47877 admin-c: DUMY-RIPE tech-c: DUMY-RIPE mnt-by: TELECOLUMBUS-MNT created: 2004-12-08T14:33:25Z last-modified: 2019-08-01T07:51:19Z 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: ****************************