These entries are queried from radb.net using whois, you can try my project getting these.
:AS-CTBC-CUSTOMERS151 as-set: AS-CTBC-CUSTOMERS151 descr: 50 customer ASes in each as-set members: AS269128,AS269174,AS269143,AS269146,AS269148,AS269194,AS269157,AS269159,AS269166,AS269163,AS269172,AS269170,AS269198,AS269192,AS269202,AS269259,AS269205,AS269213,AS269267,AS269229,AS269217,AS269274,AS269237,AS269238,AS269245,AS269248,AS269309,AS269330,AS269283,AS269292,AS269301,AS266976,AS266911,AS267670,AS266971,AS266921,AS266943,AS267021,AS266985,AS267031,AS267019,AS267053,AS267084,AS267172,AS267233,AS267253,AS267321,AS267278,AS267290,AS267305 mnt-by: MAINT-AS16735 changed: miranda [at] algartelecom.com.br 20191004 #17:32:14Z source: RADB last-modified: 2023-11-13T15:58:16Z