These entries are queried from radb.net using whois, you can try my project getting these.
:AS-RIFT as-set: AS-RIFT descr: RIFT ltd. tech-c: DUMY-RIPE admin-c: DUMY-RIPE members: AS57479 members: AS29439 members: AS21219 members: AS50392 mnt-by: RIFT-MNT created: 2011-12-09T12:33:40Z last-modified: 2017-10-26T12:45:05Z 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: ****************************