These entries are queried from radb.net using whois, you can try my project getting these.
:AS17421 route: 42.64.0.0/12 origin: AS17421 descr: CHT-Mobile Business Group mnt-by: MAINT-AS3462 changed: b-noc [at] cht.com.tw 20200428 #06:40:25Z source: RADB last-modified: 2023-11-13T16:00:36Z rpki-ov-state: valid route: 111.70.0.0/15 origin: AS17421 descr: CHT-Mobile Business Group mnt-by: MAINT-AS3462 changed: b-noc [at] cht.com.tw 20200428 #06:42:12Z source: RADB last-modified: 2023-11-13T16:00:36Z rpki-ov-state: valid route: 111.80.0.0/14 origin: AS17421 descr: CHT-Mobile Business Group mnt-by: MAINT-AS3462 changed: b-noc [at] cht.com.tw 20200428 #06:44:56Z source: RADB last-modified: 2023-11-13T16:00:36Z rpki-ov-state: valid route: 114.136.0.0/15 origin: AS17421 descr: CHT-Mobile Business Group mnt-by: MAINT-AS3462 changed: b-noc [at] cht.com.tw 20200428 #06:45:32Z source: RADB last-modified: 2023-11-13T16:00:36Z rpki-ov-state: valid route: 211.79.32.0/20 origin: AS17421 descr: CHT-Mobile Business Group mnt-by: MAINT-AS3462 changed: b-noc [at] cht.com.tw 20200428 #06:52:50Z source: RADB last-modified: 2023-11-13T16:00:36Z rpki-ov-state: valid route: 221.120.0.0/18 origin: AS17421 descr: CHT-Mobile Business Group mnt-by: MAINT-AS3462 changed: b-noc [at] cht.com.tw 20200428 #06:53:39Z source: RADB last-modified: 2023-11-13T16:00:36Z rpki-ov-state: valid route: 221.120.64.0/19 origin: AS17421 descr: CHT-Mobile Business Group mnt-by: MAINT-AS3462 changed: b-noc [at] cht.com.tw 20200428 #06:54:08Z source: RADB last-modified: 2023-11-13T16:00:36Z rpki-ov-state: valid route: 223.136.0.0/13 origin: AS17421 descr: CHT-Mobile Business Group mnt-by: MAINT-AS3462 changed: b-noc [at] cht.com.tw 20200428 #06:54:38Z source: RADB last-modified: 2023-11-13T16:00:36Z rpki-ov-state: valid