These entries are queried from radb.net using whois, you can try my project getting these.
:AS17862 route: 114.70.74.0/23 descr: Gangwon Univ origin: AS17862 mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20151008 #08:31:12Z source: RADB last-modified: 2023-11-13T16:15:44Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 114.70.98.0/23 descr: Gangwon Univ origin: AS17862 mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20151008 #08:31:46Z source: RADB last-modified: 2023-11-13T16:15:44Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 114.70.100.0/22 origin: AS17862 descr: KangWonUniversity mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20210714 source: RADB last-modified: 2023-11-13T16:07:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 114.70.104.0/21 origin: AS17862 descr: KangWonUniversity mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20210714 source: RADB last-modified: 2023-11-13T16:07:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 114.70.112.0/21 origin: AS17862 descr: KangWonUniversity mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20210714 source: RADB last-modified: 2023-11-13T16:07:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 114.70.120.0/22 origin: AS17862 descr: KangWonUniversity mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20210714 source: RADB last-modified: 2023-11-13T16:07:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 114.70.124.0/23 origin: AS17862 descr: KangWonUniversity mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20210714 source: RADB last-modified: 2023-11-13T16:07:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 114.70.218.0/23 descr: Gangwon Univ origin: AS17862 mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20151008 #08:32:18Z source: RADB last-modified: 2023-11-13T16:15:44Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 114.70.224.0/20 origin: AS17862 descr: KWNU-AS-KR mnt-by: MAINT-AS9318 changed: ipnoc [at] skbroadband.com 20220424 source: RADB last-modified: 2023-11-13T16:10:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 117.17.114.0/23 descr: Gangwon Univ origin: AS17862 mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20151008 #08:32:47Z source: RADB last-modified: 2023-11-13T16:15:44Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.151.96.0/24 origin: AS17862 descr: DaeguBank mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20210714 source: RADB last-modified: 2023-11-13T16:07:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.187.64.0/20 origin: AS17862 descr: KangWonUniversity mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20210714 source: RADB last-modified: 2023-11-13T16:07:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.187.80.0/22 origin: AS17862 descr: KangWonUniversity mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20210714 source: RADB last-modified: 2023-11-13T16:07:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.187.84.0/23 origin: AS17862 descr: KangWonUniversity mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20210714 source: RADB last-modified: 2023-11-13T16:07:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.203.144.0/24 descr: contact noc [at] bora.net if necessary origin: AS17862 mnt-by: MAINT-AS3786 changed: yuncheol [at] bora.net 20021229 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: 203.252.64.0/19 descr: contact noc [at] bora.net if necessary origin: AS17862 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: 210.107.93.0/24 descr: SejongTelecom.co.ltd origin: AS17862 mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20201231 source: RADB last-modified: 2023-11-13T16:03:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.115.32.0/19 descr: contact noc [at] bora.net if necessary origin: AS17862 mnt-by: MAINT-AS3786 changed: yuncheol [at] bora.net 20021229 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: 210.120.85.0/24 descr: SejongTelecom.co.ltd origin: AS17862 mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20201231 source: RADB last-modified: 2023-11-13T16:03:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.182.254.0/24 descr: SejongTelecom.co.ltd origin: AS17862 mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20201231 source: RADB last-modified: 2023-11-13T16:03:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.206.221.0/24 descr: SejongTelecom.co.ltd origin: AS17862 mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20201231 source: RADB last-modified: 2023-11-13T16:03:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.207.253.0/24 descr: SejongTelecom.co.ltd origin: AS17862 mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20201231 source: RADB last-modified: 2023-11-13T16:03:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.40.239.0/24 descr: SejongTelecom.co.ltd origin: AS17862 mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20201231 source: RADB last-modified: 2023-11-13T16:03:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.53.221.0/24 descr: SejongTelecom.co.ltd origin: AS17862 mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20201231 source: RADB last-modified: 2023-11-13T16:03:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.60.141.0/24 descr: SejongTelecom.co.ltd origin: AS17862 mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20201231 source: RADB last-modified: 2023-11-13T16:03:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.118.144.0/24 descr: SejongTelecom.co.ltd origin: AS17862 mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20201231 source: RADB last-modified: 2023-11-13T16:03:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.119.253.0/24 descr: SejongTelecom.co.ltd origin: AS17862 mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20201231 source: RADB last-modified: 2023-11-13T16:03:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.168.247.0/24 descr: SejongTelecom.co.ltd origin: AS17862 mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20201231 source: RADB last-modified: 2023-11-13T16:03:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.169.58.0/24 descr: SejongTelecom.co.ltd origin: AS17862 mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20201231 source: RADB last-modified: 2023-11-13T16:03:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.170.247.0/24 descr: SejongTelecom.co.ltd origin: AS17862 mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20201231 source: RADB last-modified: 2023-11-13T16:03:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.180.61.0/24 descr: SejongTelecom.co.ltd origin: AS17862 mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20201231 source: RADB last-modified: 2023-11-13T16:03:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.181.192.0/24 descr: SejongTelecom.co.ltd origin: AS17862 mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20201231 source: RADB last-modified: 2023-11-13T16:03:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.234.21.0/24 descr: SejongTelecom.co.ltd origin: AS17862 mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20201231 source: RADB last-modified: 2023-11-13T16:03:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 218.152.222.0/24 origin: AS17862 descr: KangWonUniversity mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20210714 source: RADB last-modified: 2023-11-13T16:07:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 220.149.44.0/22 descr: Knagwon National University origin: AS17862 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