These entries are queried from radb.net using whois, you can try my project getting these.
:AS55600 route: 1.254.30.0/23 descr: KINX-Dreamline origin: AS55600 mnt-by: MAINT-AS9957 changed: noc [at] kinx.net 20110406 #10:25:54Z source: RADB last-modified: 2023-11-13T15:41:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 1.254.30.0/24 descr: proxy for HANARO TELECOM route origin: AS55600 mnt-by: MAINT-HANARO changed: ce-support [at] us.ntt.net 20110329 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 1.254.31.0/24 descr: proxy for HANARO TELECOM route origin: AS55600 mnt-by: MAINT-HANARO changed: ce-support [at] us.ntt.net 20110329 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 1.254.32.0/24 descr: Hana Broadcasting Co, Ltd origin: AS55600 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20110407 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: 1.254.32.0/24 descr: proxy for HANARO TELECOM route origin: AS55600 mnt-by: MAINT-HANARO changed: ce-support [at] us.ntt.net 20110329 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.103.26.0/24 descr: proxy for HANARO TELECOM route origin: AS55600 mnt-by: MAINT-HANARO changed: ce-support [at] us.ntt.net 20110329 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.103.26.0/24 descr: Hana Broadcasting Co, Ltd origin: AS55600 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20110407 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: 61.103.128.0/23 descr: KINX-Dreamline origin: AS55600 mnt-by: MAINT-AS9957 changed: noc [at] kinx.net 20110406 #10:23:57Z source: RADB last-modified: 2023-11-13T15:41:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.103.128.0/24 descr: masan broadcast origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20130804 #10:38:50Z source: RADB last-modified: 2023-11-13T15:45:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.103.129.0/24 descr: masan broadcast origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20130804 #10:38:50Z source: RADB last-modified: 2023-11-13T15:45:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.103.144.0/24 descr: KINX-Dream origin: AS55600 mnt-by: MAINT-AS9957 changed: noc [at] kinx.net 20111017 #06:47:37Z source: RADB last-modified: 2023-11-13T15:41:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.103.145.0/24 descr: KINX-Dreamline origin: AS55600 mnt-by: MAINT-AS9957 changed: noc [at] kinx.net 20111017 #06:48:44Z source: RADB last-modified: 2023-11-13T15:41:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.103.236.0/24 descr: masan broadcast origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20130804 #10:38:50Z source: RADB last-modified: 2023-11-13T15:45:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.103.237.0/24 descr: masan broadcast origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20130804 #10:38:50Z source: RADB last-modified: 2023-11-13T15:45:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.103.238.0/24 descr: masan broadcast origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20130804 #10:38:50Z source: RADB last-modified: 2023-11-13T15:45:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.103.239.0/24 descr: masan broadcast origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20130804 #10:38:50Z source: RADB last-modified: 2023-11-13T15:45:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.103.240.0/24 descr: masan broadcast origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20130804 #10:38:50Z source: RADB last-modified: 2023-11-13T15:45:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 123.214.5.0/24 descr: Hana Broadcasting Co, Ltd origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20140327 #08:03:00Z source: RADB last-modified: 2023-11-13T15:46:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 123.214.244.0/22 descr: Hana Broadcasting Co, Ltd origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20140327 #08:03:00Z source: RADB last-modified: 2023-11-13T15:46:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 123.214.244.0/24 descr: SejongTelecom.co.ltd origin: AS55600 notify: network [at] sejongtelecom.net mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20171229 #05:17:47Z 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: 123.214.245.0/24 descr: SejongTelecom.co.ltd origin: AS55600 notify: network [at] sejongtelecom.net mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20171229 #05:17:47Z 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: 123.214.246.0/24 descr: SejongTelecom.co.ltd origin: AS55600 notify: network [at] sejongtelecom.net mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20171229 #05:17:47Z 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: 123.214.247.0/24 descr: SejongTelecom.co.ltd origin: AS55600 notify: network [at] sejongtelecom.net mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20171229 #05:17:47Z 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: 125.57.113.0/24 descr: masan broadcast origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20130804 #10:38:50Z source: RADB last-modified: 2023-11-13T15:45:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 125.57.114.0/24 descr: masan broadcast origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20130804 #10:38:50Z source: RADB last-modified: 2023-11-13T15:45:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 125.57.115.0/24 descr: masan broadcast origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20130804 #10:38:50Z source: RADB last-modified: 2023-11-13T15:45:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 125.57.116.0/24 descr: masan broadcast origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20130804 #10:38:50Z source: RADB last-modified: 2023-11-13T15:45:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 125.57.117.0/24 descr: masan broadcast origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20130804 #10:38:50Z source: RADB last-modified: 2023-11-13T15:45:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 125.57.118.0/24 descr: masan broadcast origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20130804 #10:38:50Z source: RADB last-modified: 2023-11-13T15:45:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 125.57.170.0/24 descr: masan broadcast origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20130804 #10:38:50Z source: RADB last-modified: 2023-11-13T15:45:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 125.57.171.0/24 descr: masan broadcast origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20130804 #10:38:50Z source: RADB last-modified: 2023-11-13T15:45:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 125.57.172.0/24 descr: masan broadcast origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20130804 #10:38:50Z source: RADB last-modified: 2023-11-13T15:45:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 125.57.173.0/24 descr: masan broadcast origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20130804 #10:38:50Z source: RADB last-modified: 2023-11-13T15:45:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 125.57.174.0/24 descr: masan broadcast origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20130804 #10:38:50Z source: RADB last-modified: 2023-11-13T15:45:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 125.57.175.0/24 descr: masan broadcast origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20130804 #10:38:50Z source: RADB last-modified: 2023-11-13T15:45:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 125.57.176.0/24 descr: masan broadcast origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20130804 #10:38:50Z source: RADB last-modified: 2023-11-13T15:45:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 125.57.177.0/24 descr: masan broadcast origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20130804 #10:38:50Z source: RADB last-modified: 2023-11-13T15:45:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 125.57.178.0/24 descr: masan broadcast origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20130804 #10:38:50Z source: RADB last-modified: 2023-11-13T15:45:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 125.57.179.0/24 descr: masan broadcast origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20130804 #10:38:50Z source: RADB last-modified: 2023-11-13T15:45:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 125.57.186.0/24 descr: masan broadcast origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20130804 #10:38:50Z source: RADB last-modified: 2023-11-13T15:45:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 125.57.187.0/24 descr: masan broadcast origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20130804 #10:38:50Z source: RADB last-modified: 2023-11-13T15:45:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 125.57.188.0/24 descr: masan broadcast origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20130804 #10:38:50Z source: RADB last-modified: 2023-11-13T15:45:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 125.57.189.0/24 descr: SejongTelecom.co.ltd origin: AS55600 notify: network [at] sejongtelecom.net mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20171229 #05:17:47Z 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: 125.57.190.0/24 descr: masan broadcast origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20130804 #10:35:30Z source: RADB last-modified: 2023-11-13T15:45:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.116.160.0/21 descr: Hana Broadcasting Co, Ltd origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20140327 #08:03:00Z source: RADB last-modified: 2023-11-13T15:46:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.116.160.0/24 descr: Hana Broadcasting Co, Ltd origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20140327 #08:40:48Z source: RADB last-modified: 2023-11-13T15:46:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.116.161.0/24 descr: Hana Broadcasting Co, Ltd origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20140327 #08:40:48Z source: RADB last-modified: 2023-11-13T15:46:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.116.162.0/24 descr: Hana Broadcasting Co, Ltd origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20140327 #08:40:48Z source: RADB last-modified: 2023-11-13T15:46:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.116.163.0/24 descr: Hana Broadcasting Co, Ltd origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20140327 #08:40:48Z source: RADB last-modified: 2023-11-13T15:46:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.116.164.0/24 descr: Hana Broadcasting Co, Ltd origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20140327 #08:40:48Z source: RADB last-modified: 2023-11-13T15:46:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.116.165.0/24 descr: Hana Broadcasting Co, Ltd origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20140327 #08:40:48Z source: RADB last-modified: 2023-11-13T15:46:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.116.166.0/24 descr: Hana Broadcasting Co, Ltd origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20140327 #08:40:48Z source: RADB last-modified: 2023-11-13T15:46:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.116.167.0/24 descr: Hana Broadcasting Co, Ltd origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20140327 #08:40:48Z source: RADB last-modified: 2023-11-13T15:46:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.116.168.0/22 descr: Hana Broadcasting Co, Ltd origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20140327 #08:03:00Z source: RADB last-modified: 2023-11-13T15:46:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.116.168.0/24 descr: Hana Broadcasting Co, Ltd origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20140327 #08:40:48Z source: RADB last-modified: 2023-11-13T15:46:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.116.169.0/24 descr: Hana Broadcasting Co, Ltd origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20140327 #08:40:48Z source: RADB last-modified: 2023-11-13T15:46:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.116.170.0/24 descr: Hana Broadcasting Co, Ltd origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20140327 #08:40:48Z source: RADB last-modified: 2023-11-13T15:46:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.116.171.0/24 descr: Hana Broadcasting Co, Ltd origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20140327 #08:40:48Z source: RADB last-modified: 2023-11-13T15:46:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.116.172.0/24 descr: Hana Broadcasting Co, Ltd origin: AS55600 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20140327 #08:40:48Z source: RADB last-modified: 2023-11-13T15:46:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source