These entries are queried from radb.net using whois, you can try my project getting these.
:AS-ISPPRO as-set: AS-ISPPRO descr: ISPpro AS descr: ISPpro Internet KG descr: Otto-Schott-Str. 13, Gebaeude 56 descr: D - 07745 Jena members: AS35366 members: AS-ENCOLINE tech-c: DUMY-RIPE admin-c: DUMY-RIPE mnt-by: ISPPRO-NOC-MNT created: 2007-05-04T13:30:36Z last-modified: 2019-01-07T12:21:51Z 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: ****************************