These entries are queried from radb.net using whois, you can try my project getting these.
:AS140699 route: 103.151.252.0/23 descr: CAT route object for CAT Telecom origin: AS140699 mnt-by: MAINT-THIX-CAT-TH changed: catdb [at] cat.net.th 20200608 source: RADB last-modified: 2023-11-13T16:00:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.151.252.0/23 origin: AS140699 descr: Royal Thai Army Royal Thai Army Headquarters Ratchadamnoen Nok Rd. mnt-by: MAINT-ROYALTHAIARMY-TH last-modified: 2020-06-05T04:21:32Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.151.252.0/24 descr: CAT route object for CAT Telecom origin: AS140699 mnt-by: MAINT-THIX-CAT-TH changed: catdb [at] cat.net.th 20200608 source: RADB last-modified: 2023-11-13T16:00:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.151.253.0/24 descr: CAT route object for CAT Telecom origin: AS140699 mnt-by: MAINT-THIX-CAT-TH changed: catdb [at] cat.net.th 20200608 source: RADB last-modified: 2023-11-13T16:00:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:df3:e480::/48 origin: AS140699 descr: Royal Thai Army Royal Thai Army Headquarters Ratchadamnoen Nok Rd. mnt-by: MAINT-ROYALTHAIARMY-TH last-modified: 2020-06-05T04:24:03Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:df3:e480::/48 descr: CAT route object for CAT Telecom origin: AS140699 mnt-by: MAINT-THIX-CAT-TH changed: catdb [at] cat.net.th 20200608 source: RADB last-modified: 2023-11-13T16:00:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source