These entries are queried from radb.net using whois, you can try my project getting these.
:AS45972 route: 1.250.62.0/24 origin: AS45972 descr: AS45972 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20190102 #00:57:18Z source: RADB last-modified: 2023-11-13T15:55:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.7.190.0/24 descr: KOREA LAND AND GEOSPATIAL INFORMATIX CORPORATION origin: AS45972 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20170215 #17:00:31Z source: RADB last-modified: 2023-11-13T15:50:50Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.7.191.0/24 descr: KOREA LAND AND GEOSPATIAL INFORMATIX CORPORATION origin: AS45972 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20170215 #17:00:31Z source: RADB last-modified: 2023-11-13T15:50:50Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.221.73.0/24 origin: AS45972 descr: AS45972 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20190102 #04:36:55Z source: RADB last-modified: 2023-11-13T15:55:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source