These entries are queried from radb.net using whois, you can try my project getting these.
:AS17615 route: 58.72.206.0/24 descr: Proxy-Registered Route Object by DACOM(AS3786) origin: AS17615 remarks: This route object is for a DACOM's customer route remarks: which is being exported under this origin AS. remarks: remarks: This route object was automatically created to prevent remarks: some DACOM peer from rejecting this route because remarks: they may create their filter based on Route Registry DB. notify: noc [at] bora.net mnt-by: MAINT-AS3786 changed: yuncheol [at] bora.net 20060109 source: RADB last-modified: 2023-11-13T16:09:31Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 58.72.207.0/24 descr: Proxy-Registered Route Object by DACOM(AS3786) origin: AS17615 remarks: This route object is for a DACOM's customer route remarks: which is being exported under this origin AS. remarks: remarks: This route object was automatically created to prevent remarks: some DACOM peer from rejecting this route because remarks: they may create their filter based on Route Registry DB. notify: noc [at] bora.net mnt-by: MAINT-AS3786 changed: yuncheol [at] bora.net 20060109 source: RADB last-modified: 2023-11-13T16:09:31Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 58.72.208.0/22 descr: ChungJu Univ. origin: AS17615 mnt-by: MAINT-AS4766 changed: nockton1 [at] soback.kornet.net 20050419 source: RADB last-modified: 2023-11-13T16:15:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.252.224.0/19 descr: Cheongju University origin: AS17615 mnt-by: MAINT-AS4766 changed: grant96 [at] kornet.net 20060203 source: RADB last-modified: 2023-11-13T16:15:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.48.240.0/24 descr: Cheongju University origin: AS17615 mnt-by: MAINT-AS4766 changed: grant96 [at] kornet.net 20060203 source: RADB last-modified: 2023-11-13T16:15:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source