These entries are queried from radb.net using whois, you can try my project getting these.
:AS38424 route: 27.255.96.0/19 descr: korea cable telecom origin: AS38424 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20110810 #15:09:52Z source: RADB last-modified: 2023-11-13T16:15:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 27.255.96.0/21 descr: SejongTelecom.co.ltd origin: AS38424 notify: network [at] sejongtelecom.net mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20171228 #19:24:42Z source: RADB last-modified: 2023-11-13T15:52:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 27.255.105.0/24 descr: SejongTelecom.co.ltd origin: AS38424 notify: network [at] sejongtelecom.net mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20171228 #19:24:42Z source: RADB last-modified: 2023-11-13T15:52:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 110.44.48.0/23 origin: AS38424 descr: KCT-AS-KR mnt-by: MAINT-AS9318 changed: ipnoc [at] skbroadband.com source: RADB last-modified: 2024-04-17T03:24:12Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 110.44.50.0/23 origin: AS38424 descr: KCT-AS-KR mnt-by: MAINT-AS9318 changed: ipnoc [at] skbroadband.com source: RADB last-modified: 2024-04-17T03:24:12Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 112.140.144.0/21 descr: Proxy-registered route object origin: AS38424 remarks: This route object is for a BtN customer route remarks: which is being exported under this origin AS. remarks: remarks: This route object was created because no existing remarks: route object with the same origin was found, and remarks: since some BtN peers filter based on these objects remarks: this route may be rejected if this object is not created. remarks: remarks: Please contact peering [at] cais.net if you have any remarks: questions regarding this object. mnt-by: MAINT-AS3491 changed: sajwani [at] pccwbtn.com 20090407 source: RADB last-modified: 2023-11-13T15:42:39Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 112.140.144.0/21 descr: proxy for HANARO TELECOM route origin: AS38424 mnt-by: MAINT-HANARO changed: ce-support [at] us.ntt.net 20090407 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.17.226.0/24 descr: PACNET (proxy-registered route object) origin: AS38424 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 ANC 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 20100204 source: RADB last-modified: 2023-11-13T15:58:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.17.226.0/24 descr: proxy for HANARO TELECOM route origin: AS38424 mnt-by: MAINT-HANARO changed: ce-support [at] us.ntt.net 20080504 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.82.220.0/23 descr: PACNET (proxy-registered route object) origin: AS38424 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 ANC 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 20100204 source: RADB last-modified: 2023-11-13T15:58:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.82.220.0/24 descr: Sejong Telecom origin: AS38424 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20100722 source: RADB last-modified: 2023-11-13T16:15:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.82.220.0/24 descr: proxy for HANARO TELECOM route origin: AS38424 mnt-by: MAINT-HANARO changed: ce-support [at] us.ntt.net 20080621 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.82.221.0/24 descr: Sejong Telecom origin: AS38424 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20100722 source: RADB last-modified: 2023-11-13T16:15:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.82.221.0/24 descr: proxy for HANARO TELECOM route origin: AS38424 mnt-by: MAINT-HANARO changed: ce-support [at] us.ntt.net 20081211 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.129.6.0/23 descr: PACNET (proxy-registered route object) origin: AS38424 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 ANC 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 20100204 source: RADB last-modified: 2023-11-13T15:58:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.129.6.0/24 descr: proxy for HANARO TELECOM route origin: AS38424 mnt-by: MAINT-HANARO changed: ce-support [at] us.ntt.net 20080504 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.129.6.0/24 descr: Sejong Telecom origin: AS38424 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20100722 source: RADB last-modified: 2023-11-13T16:15:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.129.7.0/24 descr: Sejong Telecom origin: AS38424 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20100722 source: RADB last-modified: 2023-11-13T16:15:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.129.7.0/24 descr: proxy for HANARO TELECOM route origin: AS38424 mnt-by: MAINT-HANARO changed: ce-support [at] us.ntt.net 20090115 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.175.118.0/23 origin: AS38424 descr: SKBroadbnad's coustemr route mnt-by: MAINT-AS9318 changed: ipnoc [at] skbroadband.com source: RADB last-modified: 2024-01-09T00:00:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.175.120.0/22 origin: AS38424 descr: SKBroadbnad's coustemr route mnt-by: MAINT-AS9318 changed: ipnoc [at] skbroadband.com source: RADB last-modified: 2024-01-09T00:00:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.175.124.0/23 origin: AS38424 descr: SKBroadbnad's coustemr route mnt-by: MAINT-AS9318 changed: ipnoc [at] skbroadband.com source: RADB last-modified: 2024-01-09T00:00:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.176.243.0/24 origin: AS38424 descr: SKBroadbnad's coustemr route mnt-by: MAINT-AS9318 changed: ipnoc [at] skbroadband.com source: RADB last-modified: 2024-01-09T00:00:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.176.244.0/22 origin: AS38424 descr: SKBroadbnad's coustemr route mnt-by: MAINT-AS9318 changed: ipnoc [at] skbroadband.com source: RADB last-modified: 2024-01-09T00:00:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.176.248.0/23 origin: AS38424 descr: SKBroadbnad's coustemr route mnt-by: MAINT-AS9318 changed: ipnoc [at] skbroadband.com source: RADB last-modified: 2024-01-09T00:00:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.176.250.0/24 origin: AS38424 descr: SKBroadbnad's coustemr route mnt-by: MAINT-AS9318 changed: ipnoc [at] skbroadband.com source: RADB last-modified: 2024-01-09T00:00:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source