These entries are queried from radb.net using whois, you can try my project getting these.
:AS138003 route: 161.82.148.0/24 origin: AS138003 descr: ROYAL POLICE CADET ACADEMY mnt-by: MAINT-AS132280 changed: suttichot.p [at] symphony.net.th 20200116 #12:51:46Z source: RADB last-modified: 2023-11-13T15:59:38Z rpki-ov-state: valid route: 161.82.148.0/24 origin: AS138003 descr: Symphony Communication Public Company Limited 123 Suntowers Building B, 35th-36th Floor, Vibhavadee Rangsit Road, Chomphon, Chatuchak mnt-by: MAINT-SYMPHONY-TH last-modified: 2023-08-09T03:13:21Z source: APNIC rpki-ov-state: valid route: 202.29.103.0/24 origin: AS138003 descr: ROYAL POLICE CADET ACADEMY mnt-by: MAINT-AS7470 changed: kanpisit_nin [at] trueinternet.co.th 20190808 #08:21:54Z source: RADB last-modified: 2023-11-13T15:57:01Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source