These entries are queried from radb.net using whois, you can try my project getting these.
:AS146842 route: 103.170.212.0/23 descr: ChinaDataCom Corporation Limited country: CN origin: AS146842 mnt-by: MAINT-CNNIC-AP last-modified: 2021-09-06T08:32:01Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.170.212.0/24 descr: ChinaDataCom Corporation Limited country: CN origin: AS146842 mnt-by: MAINT-CNNIC-AP last-modified: 2022-03-18T07:28:02Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.170.213.0/24 descr: ChinaDataCom Corporation Limited country: CN origin: AS146842 mnt-by: MAINT-CNNIC-AP last-modified: 2022-03-18T07:28:02Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 114.142.136.0/21 origin: AS146842 descr: China Datacom Corporation Limited Block D, Creative Industry Park, No. 310 Yuangang Road mnt-by: MAINT-CDCL-CN last-modified: 2022-06-17T07:37:37Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.91.104.0/21 descr: CMI (Customer Route) origin: AS146842 mnt-by: MAINT-AS58453 changed: qas_support [at] cmi.chinamobile.com 20220322 source: RADB last-modified: 2023-11-13T16:10:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.91.104.0/21 origin: AS146842 descr: China Datacom Corporation Limited Block D, Creative Industry Park, No. 310 Yuangang Road mnt-by: MAINT-CDCL-CN last-modified: 2022-06-17T07:37:23Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.91.104.0/23 origin: AS146842 descr: China Datacom Corporation Limited Block D, Creative Industry Park, No. 310 Yuangang Road mnt-by: MAINT-CDCL-CN last-modified: 2021-11-23T11:24:50Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.91.106.0/23 origin: AS146842 descr: China Datacom Corporation Limited Block D, Creative Industry Park, No. 310 Yuangang Road mnt-by: MAINT-CDCL-CN last-modified: 2021-11-23T11:24:51Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.91.108.0/23 origin: AS146842 descr: China Datacom Corporation Limited Block D, Creative Industry Park, No. 310 Yuangang Road mnt-by: MAINT-CDCL-CN last-modified: 2021-11-23T11:24:52Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.91.110.0/24 descr: CMI (Customer Route) origin: AS146842 mnt-by: MAINT-AS58453 changed: qas_support [at] cmi.chinamobile.com 20220510 source: RADB last-modified: 2023-11-13T16:10:58Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.91.111.0/24 descr: CMI (Customer Route) origin: AS146842 mnt-by: MAINT-AS58453 changed: qas_support [at] cmi.chinamobile.com 20220510 source: RADB last-modified: 2023-11-13T16:10:58Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2400:3160::/32 origin: AS146842 descr: China Datacom Corporation Limited Block D, Creative Industry Park, No. 310 Yuangang Road mnt-by: MAINT-CDCL-CN last-modified: 2021-11-12T06:14:12Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source