These entries are queried from radb.net using whois, you can try my project getting these.
:AS133588 route: 103.237.52.0/23 origin: AS133588 descr: Customer route (Telcotech) mnt-by: MAINT-AS137557 changed: jittikorn [at] intergateway.co.th 20201021 #09:24:09Z source: RADB last-modified: 2023-11-13T16:02:40Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.237.53.0/24 descr: proxy-registered for CIDC-KH origin: AS133588 mnt-by: MAINT-AS55329 changed: noc [at] telcotech.com.kh 20140804 #08:27:03Z source: RADB last-modified: 2023-11-13T16:19:22Z rpki-ov-state: valid route: 103.237.53.0/24 origin: AS133588 descr: CIDC INFORMATION TECHNOLOGY CO.; LTD. No 308, Monivong Boulevard mnt-by: MAINT-AP-CIDC-KH last-modified: 2018-01-29T02:02:08Z source: APNIC rpki-ov-state: valid route: 103.237.53.0/24 descr: Proxy-registered route object origin: AS133588 remarks: This is a HGC customer route-object remarks: which is being exported under this origin AS. remarks: remarks: This route object was created because no existing remarks: route object with the same origin was found. remarks: remarks: Please contact radb [at] hutchcity.com if you have any remarks: questions regarding this object. notify: radb [at] hutchcity.com mnt-by: MAINT-AS9304 changed: radb [at] hutchcity.com 20211020 source: NTTCOM last-modified: 2021-10-20T02:38:33Z rpki-ov-state: valid