These entries are queried from radb.net using whois, you can try my project getting these.
:AS17837 route: 103.215.144.0/22 descr: SejongTelecom.co.ltd origin: AS17837 notify: network [at] sejongtelecom.net mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20171228 #04:45:47Z source: RADB last-modified: 2023-11-13T15:52:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.215.144.0/24 descr: NHN KCP Corp. origin: AS17837 mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20170615 #08:55:32Z 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: 103.215.145.0/24 descr: NHN KCP Corp. origin: AS17837 mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20170615 #08:56:45Z 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: 103.215.146.0/24 descr: NHN KCP Corp. origin: AS17837 mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20170615 #08:57:36Z 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: 103.215.147.0/24 descr: NHN KCP Corp. origin: AS17837 mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20170615 #08:58:15Z 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: 157.119.32.0/22 origin: AS17837 descr: SejongTelecom.co.ltd notify: network [at] sejongtelecom.net mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20191113 #09:19:26Z source: RADB last-modified: 2023-11-13T15:58:51Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 157.119.32.0/24 descr: NHN KCP Corp. origin: AS17837 mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20170615 #08:58:56Z 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: 157.119.33.0/24 descr: NHN KCP Corp. origin: AS17837 mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20170615 #08:59:31Z 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: 157.119.34.0/24 descr: NHN KCP Corp. origin: AS17837 mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20170615 #09:00:06Z 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: 157.119.35.0/24 descr: NHN KCP Corp. origin: AS17837 mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20170615 #09:00:58Z 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: 175.197.102.0/24 origin: AS17837 descr: AS17837 mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20191106 #05:53:43Z 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: 175.197.103.0/24 origin: AS17837 descr: AS17837 mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20191106 #05:54:15Z 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: 203.231.36.0/23 descr: SejongTelecom.co.ltd origin: AS17837 mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 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: 203.231.50.0/24 origin: AS17837 descr: SejongTelecom.co.ltd changed: network [at] sejongtelecom.net 20181213 #05:56:32Z source: RADB mnt-by: MAINT-AS4670 last-modified: 2023-11-13T15:55:21Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.231.51.0/24 origin: AS17837 descr: SejongTelecom.co.ltd changed: network [at] sejongtelecom.net 20181213 #05:57:08Z source: RADB mnt-by: MAINT-AS4670 last-modified: 2023-11-13T15:55:21Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.238.36.0/24 descr: contact noc [at] bora.net if necessary origin: AS17837 mnt-by: MAINT-AS3786 changed: yuncheol [at] bora.net 20021224 source: RADB last-modified: 2023-11-13T16:09:27Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.122.69.0/24 descr: contact noc [at] bora.net if necessary origin: AS17837 mnt-by: MAINT-AS3786 changed: yuncheol [at] bora.net 20021224 source: RADB last-modified: 2023-11-13T16:09:27Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.122.72.0/23 descr: PACNET (proxy-registered route object) origin: AS17837 remarks: This route object is for a PACNET customer route which is being exported under this origin AS. + This route object was created because no existing route object with the same origin was found, and since some PACNET peers filter based on these objects this route may be rejected if this object is not created. + Please contact abuse [at] pacnet.net if you have any Concerns regarding Spam/Abuses related to this object + Please contact ip-noc [at] pacnet.net if you have any other Questions regarding this object. notify: ip-noc [at] pacnet.net mnt-by: MAINT-AS4637 changed: ip-noc [at] pacnet.net 20100201 source: RADB last-modified: 2023-11-13T15:58:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.122.72.0/24 descr: Proxy-Registered Route Object by LG Dacom(AS3786) origin: AS17837 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 20061222 source: RADB last-modified: 2023-11-13T16:09:27Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.122.73.0/24 descr: Proxy-Registered Route Object by LG Dacom(AS3786) origin: AS17837 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 20061222 source: RADB last-modified: 2023-11-13T16:09:27Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.122.74.0/23 descr: Sejong origin: AS17837 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20130131 #08:08:14Z 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: 210.122.74.0/24 descr: SejongTelecom.co.ltd origin: AS17837 notify: network [at] sejongtelecom.net mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20171229 #05:16:44Z source: RADB last-modified: 2023-11-13T15:52:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.122.75.0/24 descr: SejongTelecom.co.ltd origin: AS17837 notify: network [at] sejongtelecom.net mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20171229 #05:16:44Z source: RADB last-modified: 2023-11-13T15:52:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.122.76.0/24 descr: sejong telecom origin: AS17837 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20141112 #02:16:27Z source: RADB last-modified: 2023-11-13T15:46:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.122.77.0/24 descr: sejong telecom origin: AS17837 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20141112 #02:17:04Z source: RADB last-modified: 2023-11-13T15:46:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.122.78.0/24 descr: AS 17837 origin: AS17837 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20160106 #13:08:38Z source: RADB last-modified: 2023-11-13T15:48:30Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.122.79.0/24 descr: AS 17837 origin: AS17837 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20160106 #13:09:33Z source: RADB last-modified: 2023-11-13T15:48:30Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.122.80.0/24 descr: SejongTelecom.co.ltd origin: AS17837 notify: network [at] sejongtelecom.net mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20171229 #05:16:44Z source: RADB last-modified: 2023-11-13T15:52:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.122.81.0/24 origin: AS17837 descr: SejongTelecom.co.ltd mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20190617 #01:16:31Z source: RADB last-modified: 2023-11-13T15:56:39Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.122.176.0/24 descr: SejongTelecom.co.ltd origin: AS17837 notify: network [at] sejongtelecom.net mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20171229 #05:16:44Z source: RADB last-modified: 2023-11-13T15:52:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.36.208.0/22 descr: SejongTelecom.co.ltd origin: AS17837 notify: network [at] sejongtelecom.net mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20171229 #05:16:44Z source: RADB last-modified: 2023-11-13T15:52:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.36.208.0/24 descr: NHN KCP Corp. origin: AS17837 mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20170615 #09:01:37Z 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: 211.36.209.0/24 descr: NHN KCP Corp. origin: AS17837 mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20170615 #09:02:18Z 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: 211.36.210.0/24 descr: NHN KCP Corp. origin: AS17837 mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20170615 #09:03:05Z 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: 211.36.211.0/24 descr: NHN KCP Corp. origin: AS17837 mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20170615 #09:03:40Z 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: 211.56.211.0/24 descr: contact dkkim [at] kcp.co.kr if necessary origin: AS17837 mnt-by: MAINT-AS3786 changed: yuncheol [at] bora.net 20011223 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: 211.169.23.0/24 descr: SejongTelecom.co.ltd origin: AS17837 mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20200309 source: RADB last-modified: 2023-11-13T16:00:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source