These entries are queried from radb.net using whois, you can try my project getting these.
:AS55604 route: 103.4.48.0/24 descr: Proxy-Registered Route Object by LG Uplus(AS3786) origin: AS55604 mnt-by: MAINT-AS3786 changed: infonoc [at] lguplus.co.kr 20230630 source: RADB last-modified: 2023-11-13T16:17:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.4.48.0/24 descr: proxy for HANARO TELECOM route origin: AS55604 mnt-by: MAINT-HANARO changed: ce-support [at] us.ntt.net 20110822 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.4.49.0/24 descr: proxy for HANARO TELECOM route origin: AS55604 mnt-by: MAINT-HANARO changed: ce-support [at] us.ntt.net 20110822 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.4.49.0/24 descr: Proxy-Registered Route Object by LG Uplus(AS3786) origin: AS55604 mnt-by: MAINT-AS3786 changed: infonoc [at] lguplus.co.kr 20230630 source: RADB last-modified: 2023-11-13T16:17:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.4.50.0/23 descr: proxy for HANARO TELECOM route origin: AS55604 mnt-by: MAINT-HANARO changed: ce-support [at] us.ntt.net 20110822 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.4.50.0/24 descr: Proxy-Registered Route Object by LG Uplus(AS3786) origin: AS55604 mnt-by: MAINT-AS3786 changed: infonoc [at] lguplus.co.kr 20230630 source: RADB last-modified: 2023-11-13T16:17:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.4.51.0/24 descr: Proxy-Registered Route Object by LG Uplus(AS3786) origin: AS55604 mnt-by: MAINT-AS3786 changed: infonoc [at] lguplus.co.kr 20230630 source: RADB last-modified: 2023-11-13T16:17:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.187.82.0/24 origin: AS55604 descr: KOMSCO-AS-KR mnt-by: MAINT-AS9318 changed: ipnoc [at] skbroadband.com 20220424 source: RADB last-modified: 2023-11-13T16:10:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source