These entries are queried from radb.net using whois, you can try my project getting these.
:AS38696 route: 120.143.248.0/21 descr: PACNET (proxy-registered route object) origin: AS38696 remarks: This route object is for a PACNET customer route which is being exported under this origin AS. + This route object was created because no existing route object with the same origin was found, and since some PACNET peers filter based on these objects this route may be rejected if this object is not created. + Please contact abuse [at] pacnet.net if you have any Concerns regarding Spam/Abuses related to this object + Please contact ip-noc [at] pacnet.net if you have any other Questions regarding this object. notify: ip-noc [at] pacnet.net mnt-by: MAINT-AS4637 changed: ip-noc [at] pacnet.net 20100201 source: RADB last-modified: 2023-11-13T15:58:53Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.181.196.0/24 descr: SejongTelecom.co.ltd origin: AS38696 mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20201223 source: RADB last-modified: 2023-11-13T16:03:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.242.213.0/24 descr: proxy for HANARO TELECOM route origin: AS38696 mnt-by: MAINT-HANARO changed: ce-support [at] us.ntt.net 20090519 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.247.186.0/24 descr: Korea Brain Research origin: AS38696 mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20161219 #11:58:28Z source: RADB last-modified: 2023-11-13T16:15:45Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source