These entries are queried from radb.net using whois, you can try my project getting these.
:AS36750 route: 142.240.0.0/16 origin: AS36750 descr: Information Technology - B1 + 300 City Centre Drive Mississauga ON L5B-3C1 Canada admin-c: RKK11-ARIN tech-c: AHMAD78-ARIN tech-c: RKK11-ARIN mnt-by: MNT-CITYOF-155-Z created: 2023-09-18T13:48:01Z last-modified: 2023-09-18T13:48:01Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source