These entries are queried from radb.net using whois, you can try my project getting these.
:AS40681 route: 170.173.16.0/22 origin: AS40681 descr: Providence Health and Services remarks: added by Blackfoot on behalf of customer mnt-by: MAINT-AS21947 changed: networkengineers [at] blackfoot.com 20230821 #17:45:49Z source: RADB last-modified: 2023-11-13T16:18:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source