These entries are queried from radb.net using whois, you can try my project getting these.
:AS-ADTV as-set: AS-ADTV descr: ADTV members: AS49718 members: AS44941 members: AS41259 members: AS44890 members: AS47656 members: AS60738 members: AS8305 tech-c: DUMY-RIPE admin-c: DUMY-RIPE mnt-by: MNT-ASTRAKHAN-DTV notify: admin [at] telplus.ru created: 2008-05-04T09:09:07Z last-modified: 2023-12-22T11:04:35Z 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: ****************************