These entries are queried from radb.net using whois, you can try my project getting these.
:AS55606 route: 152.149.0.0/19 descr: Daewoo Shipbuilding & Marine Engineering Co., Ltd. origin: AS55606 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20110721 #14:18:37Z source: RADB last-modified: 2023-11-13T16:15:45Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 152.149.32.0/21 descr: Daewoo Shipbuilding & Marine Engineering Co., Ltd. origin: AS55606 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20110721 #14:20:19Z source: RADB last-modified: 2023-11-13T16:15:45Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source