These entries are queried from radb.net using whois, you can try my project getting these.
:AS141214 route: 103.156.150.0/23 descr: CAT route object for CAT Telecom origin: AS141214 mnt-by: MAINT-THIX-CAT-TH changed: catdb [at] cat.net.th 20201009 source: RADB last-modified: 2023-11-13T16:02:24Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.156.150.0/24 descr: CAT route object for CAT Telecom origin: AS141214 mnt-by: MAINT-THIX-CAT-TH changed: catdb [at] cat.net.th 20201009 source: RADB last-modified: 2023-11-13T16:02:24Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.156.151.0/24 descr: CAT route object for CAT Telecom origin: AS141214 mnt-by: MAINT-THIX-CAT-TH changed: catdb [at] cat.net.th 20201009 source: RADB last-modified: 2023-11-13T16:02:24Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:df4:f080::/48 descr: CAT route object for CAT Telecom origin: AS141214 mnt-by: MAINT-THIX-CAT-TH changed: catdb [at] cat.net.th 20201009 source: RADB last-modified: 2023-11-13T16:02:24Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source