These entries are queried from radb.net using whois, you can try my project getting these.
:AS395520 route: 104.143.12.0/22 descr: Platform9 origin: AS395520 notify: cloud-team [at] platform9.com mnt-by: MNT-PS-911 changed: cloud-team [at] platform9.com 20190930 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 131.153.252.0/22 descr: Platform9 origin: AS395520 notify: blake [at] platform9.com mnt-by: MNT-PS-911 changed: blake [at] platform9.com 20180207 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source