These entries are queried from radb.net using whois, you can try my project getting these.
:AS137533 route: 45.251.242.0/24 descr: Customer AS IP origin: AS137533 mnt-by: MAINT-AS134121 changed: admin [at] cloudie.hk 20181030 #19:14:41Z source: RADB last-modified: 2023-11-13T15:55:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 45.251.243.0/24 descr: Customer AS/IP origin: AS137533 mnt-by: MAINT-AS134121 changed: admin [at] cloudie.hk 20181030 #19:15:02Z source: RADB last-modified: 2023-11-13T15:55:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source