These entries are queried from radb.net using whois, you can try my project getting these.
:AS9458 route: 210.98.224.0/21 descr: contact msjang [at] nownuri.nowcom.co.kr if necessary contact unknown [at] unknown.com if necessary origin: AS9458 mnt-by: MAINT-AS3786 changed: yuncheol [at] bora.net 20021216 source: RADB last-modified: 2023-11-13T16:09:30Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.98.224.0/22 descr: Proxy-registered route object origin: AS9458 remarks: auto-generated route object remarks: this next line gives the robot something to recognize remarks: L'enfer, c'est les autres remarks: remarks: This route object is for a Level 3 customer route remarks: which is being exported under this origin AS. remarks: remarks: This route object was created because no existing remarks: route object with the same origin was found, and remarks: since some Level 3 peers filter based on these objects remarks: this route may be rejected if this object is not created. remarks: remarks: Please contact dl-routing [at] lumen.com if you have any remarks: questions regarding this object. mnt-by: LEVEL3-MNT changed: roy [at] Level3.net 20050817 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.98.228.0/22 descr: Proxy-registered route object origin: AS9458 remarks: auto-generated route object remarks: this next line gives the robot something to recognize remarks: L'enfer, c'est les autres remarks: remarks: This route object is for a Level 3 customer route remarks: which is being exported under this origin AS. remarks: remarks: This route object was created because no existing remarks: route object with the same origin was found, and remarks: since some Level 3 peers filter based on these objects remarks: this route may be rejected if this object is not created. remarks: remarks: Please contact dl-routing [at] lumen.com if you have any remarks: questions regarding this object. mnt-by: LEVEL3-MNT changed: roy [at] Level3.net 20050817 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.180.71.0/24 origin: AS9458 descr: AS9458 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20190103 source: RADB last-modified: 2023-11-13T15:58:50Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.236.0.0/19 descr: contact msjang [at] nownuri.nowcom.co.kr if necessary contact unknown [at] unknown.com if necessary origin: AS9458 mnt-by: MAINT-AS3786 changed: ysjeon7 [at] bora.net 20001025 source: RADB last-modified: 2023-11-13T16:09:30Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source