These entries are queried from radb.net using whois, you can try my project getting these.
:AS-DXTLTECH as-set: as-dxtltech descr: dxtltech tech-c: SH2206-AP admin-c: SH2206-AP mnt-by: MAINT-DXTL-HK last-modified: 2022-06-17T10:31:17Z members: AS58658 members: AS134175 members: AS134548 members: AS205109 members: AS133201 members: AS134823 members: AS61005 members: AS60679 members: AS328608 source: APNIC as-set: as-dxtltech descr: AS-DXTLTECH members: AS58658 members: AS134175 members: AS134548 members: AS205109 members: AS134823 members: AS61005 members: AS60679 members: AS61007 members: AS198147 members: AS57382 members: AS328608 mnt-by: MAINT-AS134548 changed: hkstdd [at] gmail.com 20220617 #10:28:50Z source: RADB last-modified: 2023-11-13T16:11:28Z