These entries are queried from radb.net using whois, you can try my project getting these.
:AS38697 route: 1.237.134.0/24 origin: AS38697 descr: AS38697 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20190102 #00:54:03Z source: RADB last-modified: 2023-11-13T15:55:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 1.238.1.0/24 origin: AS38697 descr: AS38697 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20190102 #00:55:21Z source: RADB last-modified: 2023-11-13T15:55:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.100.82.0/24 descr: Sejong Telecom origin: AS38697 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20100803 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: 61.100.83.0/24 descr: Sejong Telecom origin: AS38697 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20100803 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: 61.100.84.0/24 descr: Sejong Telecom origin: AS38697 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20100803 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: 61.100.85.0/24 descr: Sejong Telecom origin: AS38697 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20100803 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: 61.100.86.0/24 descr: Sejong Telecom origin: AS38697 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20100803 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: 61.100.116.0/24 descr: Sejong Telecom origin: AS38697 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20100803 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: 61.100.117.0/24 descr: Sejong Telecom origin: AS38697 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20100803 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: 61.100.118.0/24 descr: Sejong Telecom origin: AS38697 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20100803 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: 118.218.43.0/24 descr: Sejong Telecom origin: AS38697 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20100803 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: 118.218.44.0/24 descr: Sejong Telecom origin: AS38697 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20100803 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: 118.218.45.0/24 descr: Sejong Telecom origin: AS38697 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20100803 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: 118.218.46.0/24 descr: Sejong Telecom origin: AS38697 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20100803 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: 118.218.47.0/24 descr: Sejong Telecom origin: AS38697 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20100803 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: 121.125.56.0/24 descr: coustomer-route origin: AS38697 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20160125 #10:04:33Z source: RADB last-modified: 2023-11-13T15:48:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.125.57.0/24 descr: coustomer-route origin: AS38697 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20160125 #10:03:52Z source: RADB last-modified: 2023-11-13T15:48:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.135.53.0/24 descr: coustomer-route origin: AS38697 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20160125 #10:00:22Z source: RADB last-modified: 2023-11-13T15:48:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.135.54.0/24 descr: coustomer-route origin: AS38697 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20160125 #10:01:27Z source: RADB last-modified: 2023-11-13T15:48:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.135.55.0/24 descr: coustomer-route origin: AS38697 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20160125 #10:02:09Z source: RADB last-modified: 2023-11-13T15:48:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 220.66.22.0/23 descr: coustomer-route origin: AS38697 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20160125 #09:58:01Z source: RADB last-modified: 2023-11-13T15:48:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 220.67.137.0/24 descr: coustomer-route origin: AS38697 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20160125 #09:57:07Z source: RADB last-modified: 2023-11-13T15:48:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 220.68.240.0/22 descr: coustomer-route origin: AS38697 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20160125 #09:54:55Z source: RADB last-modified: 2023-11-13T15:48:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 220.68.240.0/24 descr: MOK9882-AS-KR origin: AS38697 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20201018 #12:43:18Z source: RADB last-modified: 2023-11-13T16:02:39Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 220.68.243.0/24 descr: MOK9882-AS-KR origin: AS38697 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20201018 #12:43:18Z source: RADB last-modified: 2023-11-13T16:02:39Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 220.68.244.0/23 descr: coustomer-route origin: AS38697 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20160125 #09:59:19Z source: RADB last-modified: 2023-11-13T15:48:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 220.68.244.0/24 descr: MOK9882-AS-KR origin: AS38697 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20201018 #12:43:18Z source: RADB last-modified: 2023-11-13T16:02:39Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 220.94.160.0/24 descr: coustomer-route origin: AS38697 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20160125 #09:55:55Z source: RADB last-modified: 2023-11-13T15:48:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 221.150.196.0/24 origin: AS38697 descr: AS38697 assigned by KT mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20201127 #07:46:35Z source: RADB last-modified: 2023-11-13T16:03:01Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source