These entries are queried from radb.net using whois, you can try my project getting these.
:AS4665 route: 1.233.206.0/23 origin: AS4665 descr: AS4665 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20190102 #00:49:23Z 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: 1.233.208.0/20 origin: AS4665 descr: AS4665 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20190102 #00:50:18Z 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: 1.233.224.0/22 origin: AS4665 descr: AS4665 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20190102 #00:50:32Z 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: 1.233.226.0/24 descr: YONSEI-AS-KR origin: AS4665 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: 1.233.228.0/22 origin: AS4665 descr: AS4665 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20190102 #00:51:06Z 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: 1.233.232.0/22 origin: AS4665 descr: AS4665 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20190102 #00:51:19Z 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: 1.233.236.0/23 origin: AS4665 descr: AS4665 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20190102 #00:51:33Z 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: 1.233.238.0/24 origin: AS4665 descr: AS4665 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20190102 #00:51:48Z 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: 1.233.239.0/24 origin: AS4665 descr: AS4665 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20190102 #00:52:05Z 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: 1.233.240.0/20 origin: AS4665 descr: AS4665 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20190102 #00:52:55Z source: RADB last-modified: 2023-11-13T15:55:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 1.233.240.0/24 descr: YONSEI-AS-KR origin: AS4665 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: 1.233.242.0/24 descr: YONSEI-AS-KR origin: AS4665 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: 1.233.243.0/24 descr: YONSEI-AS-KR origin: AS4665 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: 1.233.244.0/24 descr: YONSEI-AS-KR origin: AS4665 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: 1.233.245.0/24 descr: YONSEI-AS-KR origin: AS4665 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: 1.233.246.0/24 descr: YONSEI-AS-KR origin: AS4665 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: 1.233.247.0/24 descr: YONSEI-AS-KR origin: AS4665 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: 1.233.248.0/24 descr: YONSEI-AS-KR origin: AS4665 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: 1.233.249.0/24 descr: YONSEI-AS-KR origin: AS4665 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: 1.233.251.0/24 descr: YONSEI-AS-KR origin: AS4665 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: 1.233.252.0/24 descr: YONSEI-AS-KR origin: AS4665 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: 1.233.254.0/24 descr: YONSEI-AS-KR origin: AS4665 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: 1.233.255.0/24 descr: YONSEI-AS-KR origin: AS4665 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: 165.132.0.0/16 descr: Yonsei University origin: AS4665 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: 165.132.0.0/17 descr: Younsei univ. origin: AS4665 mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20181202 #04:48:18Z source: RADB last-modified: 2023-11-13T16:15:45Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 165.132.40.0/24 descr: yeun se uni origin: AS4665 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20110523 #02:07:03Z source: RADB last-modified: 2023-11-13T16:15:45Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 165.132.42.0/24 descr: yeun se uni origin: AS4665 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20110523 #02:08:22Z source: RADB last-modified: 2023-11-13T16:15:45Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 165.132.43.0/24 descr: yeun se uni origin: AS4665 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20110523 #02:08:58Z source: RADB last-modified: 2023-11-13T16:15:45Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 165.132.44.0/24 descr: yeun se uni origin: AS4665 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20110523 #02:09:33Z source: RADB last-modified: 2023-11-13T16:15:45Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 165.132.45.0/24 descr: yeun se uni origin: AS4665 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20110523 #02:10:27Z source: RADB last-modified: 2023-11-13T16:15:45Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 165.132.46.0/24 descr: yeun se uni origin: AS4665 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20110523 #02:11:17Z source: RADB last-modified: 2023-11-13T16:15:45Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 165.132.47.0/24 descr: yeun se uni origin: AS4665 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20110523 #02:11:52Z source: RADB last-modified: 2023-11-13T16:15:45Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 165.132.48.0/24 descr: yeun se uni origin: AS4665 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20110523 #02:12:54Z source: RADB last-modified: 2023-11-13T16:15:45Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 165.132.51.0/24 descr: yeun se uni origin: AS4665 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20110523 #02:13:30Z source: RADB last-modified: 2023-11-13T16:15:45Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 165.132.128.0/17 descr: Younsei univ. origin: AS4665 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20130822 #11:39:22Z source: RADB last-modified: 2023-11-13T16:15:44Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source