These entries are queried from radb.net using whois, you can try my project getting these.
:AS-BASNET as-set: AS-BASNET descr: BAS-NET descr: National Academy of Sciences of Belarus descr: United Institute of Informatics Problems descr: Minsk, BY remarks: ------------------------------------------------- members: AS21274 remarks: ------------------------------------------------- members: AS5498 members: AS13171 members: AS50686 members: AS50934 members: AS57331 members: AS60744 members: AS199561 members: AS211089 remarks: ------------------------------------------------- admin-c: DUMY-RIPE tech-c: DUMY-RIPE notify: noc [at] basnet.by mnt-by: RECIT-MNT created: 2002-08-26T09:57:57Z last-modified: 2021-07-01T13:12:57Z 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: ****************************