These entries are queried from radb.net using whois, you can try my project getting these.
:AS139591 route: 209.15.124.0/22 origin: AS139591 descr: CAT Telecom Public Company Limited 13th CAT TELECOM TOWER NEW ROAD SRIPHRAYA BANGRAK BANGKOK THAILAND mnt-by: MAINT-TH-THIX-CAT last-modified: 2023-10-02T02:46:36Z source: APNIC rpki-ov-state: valid route: 209.15.124.0/22 descr: CAT route object for NT Cloud origin: AS139591 mnt-by: MAINT-THIX-CAT-TH changed: catdb [at] cat.net.th 20230922 source: RADB last-modified: 2023-11-13T16:18:44Z rpki-ov-state: valid