These entries are queried from radb.net using whois, you can try my project getting these.
:AS-DRT as-set: AS-DRT descr: Digital Realty members: AS1821 members: AS11127 members: AS11300 members: AS13126 members: AS15504 members: AS19820 members: AS24753 members: AS29033 members: AS29045 members: AS31515 members: AS31753 members: AS32980 members: AS33182 members: AS35902 members: AS35906 members: AS37027 members: AS37339 members: AS37444 members: AS38056 members: AS39356 members: AS42976 members: AS43006 members: AS43437 members: AS44706 members: AS44824 members: AS44933 members: AS47973 members: AS48152 members: AS49425 members: AS49921 members: AS49669 members: AS54013 members: AS55865 members: AS56739 members: AS60815 members: AS60949 members: AS61212 members: AS197508 members: AS198425 members: AS198567 members: AS199269 members: AS199391 members: AS201062 members: AS202597 members: AS204892 members: AS205303 members: AS206036 members: AS208638 members: AS209177 members: AS211140 members: AS394213 members: AS397496 remarks: Digital Realty European ASes and customer ASes admin-c: DUMY-RIPE tech-c: DUMY-RIPE mnt-by: MNT-DIGITAL created: 2017-03-27T11:47:23Z last-modified: 2023-11-20T11:32:30Z 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: ****************************