These entries are queried from radb.net using whois, you can try my project getting these.
:AS9763 route: 211.237.48.0/20 descr: SKNETWORKS origin: AS9763 notify: ip-tech [at] sknetworks.co.kr notify: korea-tec-gl [at] ntt.com mnt-by: MAINT-SKNETWORKS changed: ip-tech [at] sknetworks.co.kr 20090205 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.237.48.0/20 descr: PACNET (proxy-registered route object) origin: AS9763 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: 2023-11-13T15:58:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.237.48.0/23 descr: Korea Information Center for Agriculture, Forestry origin: AS9763 mnt-by: MAINT-AS4766 changed: chinny7904 [at] kornet.net 20060925 source: RADB last-modified: 2023-11-13T16:15:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.237.50.0/24 descr: Korea Information Center for Agriculture, Forestry origin: AS9763 mnt-by: MAINT-AS4766 changed: chinny7904 [at] kornet.net 20060925 source: RADB last-modified: 2023-11-13T16:15:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.237.54.0/23 descr: Korea Information Center for Agriculture, Forestry origin: AS9763 mnt-by: MAINT-AS4766 changed: chinny7904 [at] kornet.net 20060925 source: RADB last-modified: 2023-11-13T16:15:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.237.56.0/21 descr: Korea Information Center for Agriculture origin: AS9763 mnt-by: MAINT-AS4766 changed: chss93 [at] kornet.net 20040827 #05:48:37(UTC) source: RADB last-modified: 2023-11-13T16:15:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source