These entries are queried from radb.net using whois, you can try my project getting these.
:AS38099 route: 1.201.0.0/24 descr: KAKAO origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20171206 #07:29:41Z source: RADB last-modified: 2023-11-13T15:52:36Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 27.0.236.0/22 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20160224 #05:36:10Z source: RADB last-modified: 2023-11-13T15:48:45Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 27.0.236.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20160224 #05:36:51Z source: RADB last-modified: 2023-11-13T15:48:45Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 27.0.237.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20160224 #05:37:19Z source: RADB last-modified: 2023-11-13T15:48:45Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 27.0.238.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20160224 #05:37:49Z source: RADB last-modified: 2023-11-13T15:48:45Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 27.0.239.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20160224 #05:38:29Z source: RADB last-modified: 2023-11-13T15:48:45Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.246.57.0/24 descr: KAKAO origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20171206 #07:28:43Z source: RADB last-modified: 2023-11-13T15:52:36Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.53.104.0/23 origin: AS38099 descr: Kakao Corp. mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20220202 #04:16:34Z source: RADB last-modified: 2023-11-13T16:09:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.53.104.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20200811 #05:30:10Z source: RADB last-modified: 2023-11-13T16:01:31Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.53.105.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20200811 #05:30:58Z source: RADB last-modified: 2023-11-13T16:01:31Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.53.106.0/23 origin: AS38099 descr: Kakao Corp. mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20220203 #05:47:46Z source: RADB last-modified: 2023-11-13T16:09:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.53.108.0/24 origin: AS38099 descr: Kakao Corp. mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20230205 #04:45:55Z source: RADB last-modified: 2023-11-13T16:14:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.53.109.0/24 origin: AS38099 descr: Kakao Corp. mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20230205 #04:46:30Z source: RADB last-modified: 2023-11-13T16:14:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.53.110.0/24 origin: AS38099 descr: Kakao Corp. mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20230205 #04:46:53Z source: RADB last-modified: 2023-11-13T16:14:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.53.111.0/24 origin: AS38099 descr: Kakao Corp. mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20230205 #04:48:17Z source: RADB last-modified: 2023-11-13T16:14:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.53.176.0/23 descr: AS38099 origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20200403 #06:30:54Z source: RADB last-modified: 2023-11-13T16:00:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.53.178.0/23 origin: AS38099 descr: Kakao Corp. mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20220203 #05:48:27Z source: RADB last-modified: 2023-11-13T16:09:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.53.180.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20200721 #08:59:15Z source: RADB last-modified: 2023-11-13T16:01:13Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.53.181.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20200721 #08:59:44Z source: RADB last-modified: 2023-11-13T16:01:13Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.53.200.0/21 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20180117 #02:49:00Z source: RADB last-modified: 2023-11-13T15:53:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.53.200.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20180117 #04:12:44Z source: RADB last-modified: 2023-11-13T15:53:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.53.201.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20180117 #04:13:31Z source: RADB last-modified: 2023-11-13T15:53:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.53.202.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20180117 #04:14:59Z source: RADB last-modified: 2023-11-13T15:53:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.53.203.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20180117 #04:14:38Z source: RADB last-modified: 2023-11-13T15:53:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.53.204.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20180117 #04:15:58Z source: RADB last-modified: 2023-11-13T15:53:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.53.205.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20180117 #04:16:22Z source: RADB last-modified: 2023-11-13T15:53:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.53.206.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20180117 #04:16:59Z source: RADB last-modified: 2023-11-13T15:53:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.53.207.0/24 origin: AS38099 descr: Kakao Corp. mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20220203 #05:49:39Z source: RADB last-modified: 2023-11-13T16:09:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.53.244.0/22 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20171025 #04:05:53Z source: RADB last-modified: 2023-11-13T15:51:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 139.150.1.0/24 descr: KAKAO origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20171206 #07:30:37Z source: RADB last-modified: 2023-11-13T15:52:36Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.103.253.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20160808 #04:04:02Z source: RADB last-modified: 2023-11-13T15:49:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.103.254.0/24 descr: KAKAO Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20160808 #04:06:03Z source: RADB last-modified: 2023-11-13T15:49:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.220.70.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20200723 #04:13:22Z source: RADB last-modified: 2023-11-13T16:01:14Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.220.73.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20200723 #04:13:55Z source: RADB last-modified: 2023-11-13T16:01:14Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.220.74.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20200723 #04:14:13Z source: RADB last-modified: 2023-11-13T16:01:14Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.220.79.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20200723 #04:14:32Z source: RADB last-modified: 2023-11-13T16:01:14Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.220.86.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20200721 #09:22:00Z source: RADB last-modified: 2023-11-13T16:01:13Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.220.95.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20200721 #09:21:41Z source: RADB last-modified: 2023-11-13T16:01:13Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.231.97.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20170116 #09:52:17Z source: RADB last-modified: 2023-11-13T15:50:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.231.98.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20170116 #09:53:29Z source: RADB last-modified: 2023-11-13T15:50:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.231.99.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20170116 #09:54:02Z source: RADB last-modified: 2023-11-13T15:50:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.231.100.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20170116 #09:55:15Z source: RADB last-modified: 2023-11-13T15:50:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.231.101.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20170116 #09:55:43Z source: RADB last-modified: 2023-11-13T15:50:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.231.102.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20170116 #09:56:09Z source: RADB last-modified: 2023-11-13T15:50:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.231.103.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20170116 #09:56:35Z source: RADB last-modified: 2023-11-13T15:50:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.231.104.0/21 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20160807 #03:27:32Z source: RADB last-modified: 2023-11-13T15:49:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.231.104.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20160807 #03:29:04Z source: RADB last-modified: 2023-11-13T15:49:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.231.105.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20160807 #03:29:59Z source: RADB last-modified: 2023-11-13T15:49:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.231.106.0/23 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20170404 #08:58:04Z source: RADB last-modified: 2023-11-13T15:50:56Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.231.106.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20160807 #03:30:40Z source: RADB last-modified: 2023-11-13T15:49:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.231.107.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20160807 #03:31:17Z source: RADB last-modified: 2023-11-13T15:49:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.231.108.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20160807 #03:35:08Z source: RADB last-modified: 2023-11-13T15:49:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.231.109.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20160807 #03:36:58Z source: RADB last-modified: 2023-11-13T15:49:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.231.110.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20160807 #03:37:38Z source: RADB last-modified: 2023-11-13T15:49:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.231.111.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20160807 #03:41:34Z source: RADB last-modified: 2023-11-13T15:49:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.249.200.0/21 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20180117 #02:49:39Z source: RADB last-modified: 2023-11-13T15:53:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.249.200.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20180117 #04:18:00Z source: RADB last-modified: 2023-11-13T15:53:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.249.201.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20180117 #04:18:24Z source: RADB last-modified: 2023-11-13T15:53:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.249.202.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20180117 #04:19:56Z source: RADB last-modified: 2023-11-13T15:53:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.249.203.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20180117 #04:20:22Z source: RADB last-modified: 2023-11-13T15:53:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.249.204.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20180117 #04:20:45Z source: RADB last-modified: 2023-11-13T15:53:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.249.205.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20180117 #04:22:02Z source: RADB last-modified: 2023-11-13T15:53:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.249.206.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20180117 #04:22:25Z source: RADB last-modified: 2023-11-13T15:53:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.249.207.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20180117 #04:22:53Z source: RADB last-modified: 2023-11-13T15:53:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.249.252.0/22 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20171025 #04:06:54Z source: RADB last-modified: 2023-11-13T15:51:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 219.249.216.0/24 descr: SejongTelecom.co.ltd origin: AS38099 mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20181130 source: RADB last-modified: 2023-11-13T15:55:21Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 219.249.226.0/24 descr: SejongTelecom.co.ltd origin: AS38099 mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20181130 source: RADB last-modified: 2023-11-13T15:55:21Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 219.249.231.0/24 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20160808 #04:07:56Z source: RADB last-modified: 2023-11-13T15:49:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 220.64.96.0/22 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20171025 #04:07:37Z source: RADB last-modified: 2023-11-13T15:51:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 220.64.144.0/22 descr: Kakao Corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20171025 #04:08:14Z source: RADB last-modified: 2023-11-13T15:51:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2404:4600:6::/48 descr: kakao corp. origin: AS38099 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20160323 #08:19:54Z source: RADB last-modified: 2023-11-13T15:48:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source