These entries are queried from radb.net using whois, you can try my project getting these.
:AS7561 route: 43.243.216.0/24 descr: Samsung Electronics Co. origin: AS7561 notify: yj616.han [at] samsung.com mnt-by: MAINT-KRNIC-AP changed: taehoon [at] hostway.co.kr 20141209 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 43.243.217.0/24 descr: Samsung Electronics Co. origin: AS7561 notify: yj616.han [at] samsung.com mnt-by: MAINT-KRNIC-AP changed: taehoon [at] hostway.co.kr 20141209 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.39.36.0/22 descr: AS7561 origin: AS7561 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20151208 #22:18:42Z source: RADB last-modified: 2023-11-13T15:48:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.39.39.0/24 descr: SejongTelecom.co.ltd origin: AS7561 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: 103.230.112.0/22 descr: AS7561 origin: AS7561 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20151211 #09:19:48Z source: RADB last-modified: 2023-11-13T15:48:29Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.241.220.0/22 descr: Korea Institute of Energy Research origin: AS7561 mnt-by: MAINT-AS4766 changed: jacob [at] kornet.net 20040112 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: 210.98.0.0/22 descr: Korea Institute of Energy Research origin: AS7561 mnt-by: MAINT-AS4766 changed: jacob [at] kornet.net 20040112 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: 210.98.57.0/24 descr: Proxy-Registered Route Object by LG Dacom(AS3786) origin: AS7561 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 20071008 source: RADB last-modified: 2023-11-13T16:09:29Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.112.160.0/19 descr: contact khkee [at] channeli.net if necessary contact kmchoi [at] channeli.net if necessary contact martine [at] channeli.net if necessary contact mhcho [at] channeli.net if necessary contact youngan [at] channeli.net if necessary origin: AS7561 mnt-by: MAINT-AS3786 changed: ysjeon7 [at] bora.net 20000410 source: RADB last-modified: 2023-11-13T16:09:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.112.192.0/19 descr: contact khkee [at] channeli.net if necessary contact kmchoi [at] channeli.net if necessary contact martine [at] channeli.net if necessary contact mhcho [at] channeli.net if necessary contact youngan [at] channeli.net if necessary origin: AS7561 mnt-by: MAINT-AS3786 changed: ysjeon7 [at] bora.net 20000410 source: RADB last-modified: 2023-11-13T16:09:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.43.176.0/22 descr: AS7561 origin: AS7561 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20151211 #09:19:09Z source: RADB last-modified: 2023-11-13T15:48:29Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.43.176.0/23 descr: SejongTelecom.co.ltd origin: AS7561 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: 211.43.176.0/24 descr: AS7561 origin: AS7561 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20151208 #22:19:04Z source: RADB last-modified: 2023-11-13T15:48:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source