These entries are queried from radb.net using whois, you can try my project getting these.
:AS-BALTKOM as-set: AS-BALTKOM descr: AS20910 members members: AS20910 members: AS-CLOUDHOSTING # from AS58269 members: AS-DATACLUB # from AS52048 members: AS199558 # Media Partners members: AS-GARMTECH # GarmTech members: AS57956 # Rigas Satiksme members: AS50731 # PRO-9 members: AS204427 # Proact IT members: AS57516 # MITSLV members: AS212496 # GOOD members: AS28843 # Dautkom members: AS39365 # Microlines members: AS210817 # Carmine Red IT members: AS51955 # NIC-LV members: AS202589 # TestDevLab members: AS-TELENET-LATVIA # Telenet tech-c: DUMY-RIPE admin-c: DUMY-RIPE mnt-by: BALTKOM-MNT created: 2012-01-26T20:51:37Z last-modified: 2023-04-13T09:41:41Z 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: ****************************