These entries are queried from radb.net using whois, you can try my project getting these.
:AS46005 route: 210.223.42.0/24 descr: Tbroad origin: AS46005 notify: jwchoi [at] tbroad.com notify: ip-eng-routing [at] us.ntt.net notify: tech [at] ntt.net notify: korea-tec-gl [at] ntt.com mnt-by: MAINT-VERIO-KR changed: jy.ra [at] ntt.com 20100803 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.106.46.0/23 descr: Tbroad origin: AS46005 notify: jwchoi [at] tbroad.com notify: ip-eng-routing [at] us.ntt.net notify: tech [at] ntt.net notify: korea-tec-gl [at] ntt.com mnt-by: MAINT-VERIO-KR changed: jy.ra [at] ntt.com 20100805 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.106.46.0/24 descr: Tbroad origin: AS46005 notify: jwchoi [at] tbroad.com notify: ip-eng-routing [at] us.ntt.net notify: tech [at] ntt.net notify: korea-tec-gl [at] ntt.com mnt-by: MAINT-VERIO-KR changed: jy.ra [at] ntt.com 20100805 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.106.47.0/24 descr: Tbroad origin: AS46005 notify: jwchoi [at] tbroad.com notify: ip-eng-routing [at] us.ntt.net notify: tech [at] ntt.net notify: korea-tec-gl [at] ntt.com mnt-by: MAINT-VERIO-KR changed: jy.ra [at] ntt.com 20100805 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.106.47.0/24 descr: SejongTelecom.co.ltd origin: AS46005 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