These entries are queried from radb.net using whois, you can try my project getting these.
:AS58809 route: 125.5.16.0/24 descr: IT-COREA-NET origin: AS58809 mnt-by: MAINT-ITCOREA changed: mac [at] coreonix.net 20180212 source: NTTCOM rpki-ov-state: valid route: 125.5.20.0/24 descr: IT-COREA-NET origin: AS58809 mnt-by: MAINT-ITCOREA changed: mac [at] coreonix.net 20180212 source: NTTCOM rpki-ov-state: valid route: 211.58.240.0/24 descr: IT-COREA-NET origin: AS58809 mnt-by: MAINT-ITCOREA changed: mac [at] coreonix.net 20180212 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source