These entries are queried from radb.net using whois, you can try my project getting these.
:AS6628 route: 159.191.0.0/16 origin: AS6628 descr: Portland Public Schools, Information Services 501 N. Dixon St. Portland OR 97227 United States mnt-by: MNT-PPSIS source: ARIN tech-c: EHA36-ARIN tech-c: NOC11154-ARIN tech-c: WANAD11-ARIN admin-c: WANAD11-ARIN created: 2020-06-24T14:37:59Z member-of: RS-CTA last-modified: 2020-06-24T14:55:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 159.191.0.0/16 origin: AS6628 descr: Proxy Route-Object for Portland Public Schools mnt-by: MAINT-AS25899 changed: abland [at] lsnetworks.net 20200623 #01:05:38Z source: RADB last-modified: 2023-11-13T16:09:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source