These entries are queried from radb.net using whois, you can try my project getting these.
:AS18325 route: 203.229.245.0/24 descr: KOREA CHRISTIAN UNIVERSITY origin: AS18325 mnt-by: MAINT-AS4766 changed: luxo [at] kt.co.kr 20030903 source: RADB last-modified: 2023-11-13T16:15:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.219.157.0/24 descr: contact noc [at] bora.net if necessary origin: AS18325 mnt-by: MAINT-AS3786 changed: yuncheol [at] bora.net 20030102 source: RADB last-modified: 2023-11-13T16:09:30Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.219.158.0/24 descr: contact noc [at] bora.net if necessary origin: AS18325 mnt-by: MAINT-AS3786 changed: yuncheol [at] bora.net 20030102 source: RADB last-modified: 2023-11-13T16:09:30Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 220.66.166.0/24 descr: contact noc [at] bora.net if necessary origin: AS18325 mnt-by: MAINT-AS3786 changed: yuncheol [at] bora.net 20030227 source: RADB last-modified: 2023-11-13T16:09:27Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 221.139.238.0/24 origin: AS18325 descr: AS18325 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20190102 #04:36:55Z source: RADB last-modified: 2023-11-13T15:55:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source