These entries are queried from radb.net using whois, you can try my project getting these.
:AS17966 route: 218.99.0.0/20 origin: AS17966 descr: CT BeiJing IDC mnt-by: MAINT-AS23724 changed: idc_noc.bj [at] chinatelecom.cn 20200611 #01:48:48Z source: RADB last-modified: 2023-11-13T16:16:01Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 218.99.16.0/20 origin: AS17966 descr: CT BeiJing IDC mnt-by: MAINT-AS23724 changed: idc_noc.bj [at] chinatelecom.cn 20200611 #01:49:18Z source: RADB last-modified: 2023-11-13T16:16:01Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source