These entries are queried from radb.net using whois, you can try my project getting these.
:AS45401 route: 114.52.52.0/27 descr: The info of AS45401 is available at whois.krnic.net origin: AS45401 mnt-by: MAINT-AS4670 changed: sunggab [at] gmail.com 20090908 source: RADB last-modified: 2023-11-13T15:40:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 114.52.52.0/27 descr: SKNetworks origin: AS45401 notify: ip-tech [at] sknetworks.co.kr notify: dck [at] sknetworks.co.kr notify: korea-tec-gl [at] ntt.com mnt-by: MAINT-SKNETWORKS changed: jy.ra [at] ntt.com 20090910 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 124.136.18.216/29 descr: The info of AS45401 is available at whois.krnic.net origin: AS45401 mnt-by: MAINT-AS4670 changed: sunggab [at] gmail.com 20090908 source: RADB last-modified: 2023-11-13T15:40:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 124.136.18.216/29 descr: SKNetworks origin: AS45401 notify: ip-tech [at] sknetworks.co.kr notify: dck [at] sknetworks.co.kr notify: korea-tec-gl [at] ntt.com mnt-by: MAINT-SKNETWORKS changed: jy.ra [at] ntt.com 20090910 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.228.247.0/26 descr: SKNetworks origin: AS45401 notify: ip-tech [at] sknetworks.co.kr notify: dck [at] sknetworks.co.kr notify: korea-tec-gl [at] ntt.com mnt-by: MAINT-SKNETWORKS changed: jy.ra [at] ntt.com 20090910 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.228.247.0/26 descr: The info of AS45401 is available at whois.krnic.net origin: AS45401 mnt-by: MAINT-AS4670 changed: sunggab [at] gmail.com 20090908 source: RADB last-modified: 2023-11-13T15:40:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.47.33.0/24 origin: AS45401 descr: NICEPAYMENTS-AS-KR (IP Owner AS4766) mnt-by: MAINT-AS9318 changed: ipnoc [at] skbroadband.com 20230327 #08:46:48Z source: RADB last-modified: 2023-11-13T16:15:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source