These entries are queried from radb.net using whois, you can try my project getting these.
:AS18034 route: 114.70.170.0/23 descr: SejongTelecom.co.ltd origin: AS18034 mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20201223 source: RADB last-modified: 2023-11-13T16:03:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 114.70.172.0/23 descr: SejongTelecom.co.ltd origin: AS18034 mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20201223 source: RADB last-modified: 2023-11-13T16:03:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 114.71.64.0/20 origin: AS18034 descr: Wonju University mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20240110 # 0819Z source: RADB last-modified: 2024-01-10T08:19:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 114.71.80.0/23 origin: AS18034 descr: Wonju University mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20240110 # 0818Z source: RADB last-modified: 2024-01-10T08:18:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 114.71.82.0/24 origin: AS18034 descr: Wonju University mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20240110 # 0820Z source: RADB last-modified: 2024-01-10T08:20:36Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.30.48.0/24 descr: Kangnung National University origin: AS18034 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20100121 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: 203.255.216.0/22 descr: Kangnung National University origin: AS18034 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20100121 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: 211.114.216.0/21 descr: contact noc [at] bora.net if necessary origin: AS18034 mnt-by: MAINT-AS3786 changed: yuncheol [at] bora.net 20021226 source: RADB last-modified: 2023-11-13T16:09:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.114.224.0/22 descr: contact noc [at] bora.net if necessary origin: AS18034 mnt-by: MAINT-AS3786 changed: yuncheol [at] bora.net 20021226 source: RADB last-modified: 2023-11-13T16:09:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.114.228.0/24 descr: contact noc [at] bora.net if necessary origin: AS18034 mnt-by: MAINT-AS3786 changed: yuncheol [at] bora.net 20021226 source: RADB last-modified: 2023-11-13T16:09:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 220.66.236.0/22 origin: AS18034 descr: Wonju University mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20240110 # 0810Z source: RADB last-modified: 2024-01-10T08:10:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 220.66.240.0/23 origin: AS18034 descr: Wonju University mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20240110 # 0814Z source: RADB last-modified: 2024-01-10T08:14:57Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 220.67.157.0/24 descr: contact noc [at] bora.net if necessary origin: AS18034 mnt-by: MAINT-AS3786 changed: yuncheol [at] bora.net 20021226 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: 220.67.158.0/23 descr: contact noc [at] bora.net if necessary origin: AS18034 mnt-by: MAINT-AS3786 changed: yuncheol [at] bora.net 20021226 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: 220.67.160.0/21 descr: contact noc [at] bora.net if necessary origin: AS18034 mnt-by: MAINT-AS3786 changed: yuncheol [at] bora.net 20021226 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: 220.67.168.0/23 descr: contact noc [at] bora.net if necessary origin: AS18034 mnt-by: MAINT-AS3786 changed: yuncheol [at] bora.net 20021226 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: 220.67.170.0/23 descr: contact noc [at] bora.net if necessary origin: AS18034 mnt-by: MAINT-AS3786 changed: yuncheol [at] bora.net 20021226 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: 220.67.170.0/24 descr: Kangnung National University origin: AS18034 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20100121 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: 220.69.224.0/20 descr: Kangnung National University origin: AS18034 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20100121 source: RADB last-modified: 2023-11-13T16:15:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source