These entries are queried from radb.net using whois, you can try my project getting these.
:AS-CTZJ as-set: AS-CTZJ descr: ASes within CT ZHEJIANG province members: AS58461,AS136188,AS136190,AS134771,AS140483,AS140484,AS140485,AS140486,AS140487,AS140488,AS140489,AS140490,AS140491,AS140492,AS140493,AS140494,AS140495,AS140496,AS140497 members: AS59037,AS45062,AS18243,AS37963,AS139136,AS24139,AS55991,AS21856 mnt-by: MAINT-AS58461 changed: qiuwh.zj [at] chinatelecom.cn 20231201 # 0212Z source: RADB last-modified: 2023-12-01T02:12:52Z