These entries are queried from radb.net using whois, you can try my project getting these.
:AS399230 route: 172.82.44.0/22 origin: AS399230 descr: 1167 Sixth Concession A Dalhousie Lanark ON K0G 1K0 Canada member-of: RS-CFC-CA admin-c: LAHAI-ARIN tech-c: LAHAI-ARIN mnt-by: MNT-CF-1686 created: 2021-04-15T18:32:07Z last-modified: 2021-04-15T20:54:02Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source