These entries are queried from radb.net using whois, you can try my project getting these.
:AS38678 route: 103.246.58.0/24 descr: Kakao Corp. origin: AS38678 mnt-by: MAINT-AS10158 changed: netops [at] daumkakao.com 20151002 #06:38:23Z source: RADB last-modified: 2023-11-13T15:48:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 119.235.192.0/20 descr: Proxy-Registered Route Object by LG Dacom(AS3786) origin: AS38678 remarks: This route object is for a LG Dacom's customer route remarks: which is being exported under this origin AS. remarks: remarks: This route object was automatically created to prevent remarks: some LG Dacom peer from rejecting this route because remarks: they may create their filter based on Route Registry DB. notify: noc [at] bora.net mnt-by: MAINT-AS3786 changed: yuncheol [at] bora.net 20080309 source: RADB last-modified: 2023-11-13T16:09:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.53.208.0/24 descr: Kakao Corp. origin: AS38678 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20200811 #05:31:22Z 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: 121.53.209.0/24 origin: AS38678 descr: Kakao Corp. mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20220203 #06:14:46Z 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: 121.53.224.0/22 origin: AS38678 descr: Kakao Corp. mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20220203 #05:16:42Z 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: 121.53.224.0/24 descr: Kakao Corp. origin: AS38678 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20200811 #05:32:21Z 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: 121.53.225.0/24 descr: Kakao Corp. origin: AS38678 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20200811 #05:35:02Z 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: 121.53.226.0/24 descr: Kakao Corp. origin: AS38678 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20200811 #05:35:25Z 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: 121.53.227.0/24 descr: Kakao Corp. origin: AS38678 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20200811 #05:35:44Z 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: 121.53.228.0/24 origin: AS38678 descr: Kakao Corp. mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20220330 #06:05:00Z source: RADB last-modified: 2023-11-13T16:10:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.53.229.0/24 origin: AS38678 descr: Kakao Corp. mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20220330 #06:05:54Z source: RADB last-modified: 2023-11-13T16:10:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.53.230.0/24 origin: AS38678 descr: Kakao Corp. mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20220330 #06:06:41Z source: RADB last-modified: 2023-11-13T16:10:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.53.231.0/24 origin: AS38678 descr: Kakao Corp. mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20220330 #06:07:30Z source: RADB last-modified: 2023-11-13T16:10:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.53.232.0/24 origin: AS38678 descr: Kakao Corp. mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20231227 # 0614Z source: RADB last-modified: 2023-12-27T06:14:31Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.53.233.0/24 origin: AS38678 descr: Kakao Corp. mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20231227 # 0615Z source: RADB last-modified: 2023-12-27T06:15:47Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 219.249.216.0/24 descr: Kakao Corp. origin: AS38678 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20180117 #02:30:54Z 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: 219.249.226.0/24 descr: Kakao Corp. origin: AS38678 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20180117 #02:43:30Z 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: 219.249.227.0/24 descr: Kakao Corp. origin: AS38678 mnt-by: MAINT-AS10158 changed: netops [at] daumkakao.com 20151002 #06:43:01Z source: RADB last-modified: 2023-11-13T15:48:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2404:4600:8::/48 descr: Kakao Corp. origin: AS38678 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20160415 #04:56:38Z source: RADB last-modified: 2023-11-13T15:49:06Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2404:4600:5a::/48 descr: kakao corp. origin: AS38678 mnt-by: MAINT-AS10158 changed: netops [at] kakaocorp.com 20160323 #08:18:26Z source: RADB last-modified: 2023-11-13T15:48:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source