These entries are queried from radb.net using whois, you can try my project getting these.
:AS18870 route: 192.40.218.0/23 descr: SDNET on behalf GWB (Great western bank) origin: AS18870 mnt-by: MAINT-AS13576 changed: gary.glissendorf [at] sdncommunications.com 20150226 #22:05:23Z source: RADB last-modified: 2023-11-13T15:47:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source