These entries are queried from radb.net using whois, you can try my project getting these.
:AS17578 route: 61.97.240.0/20 descr: PACNET (proxy-registered route object) origin: AS17578 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: 2023-11-13T15:58:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.251.48.0/20 descr: contact djsong [at] cps.co.kr if necessary origin: AS17578 mnt-by: MAINT-AS3786 changed: yuncheol [at] bora.net 20020101 source: RADB last-modified: 2023-11-13T16:09:30Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source