These entries are queried from radb.net using whois, you can try my project getting these.
:AS137952 route: 103.118.44.0/22 origin: AS137952 descr: ANGKOR E & C (CAMBODIA) Co.,Ltd. admin-c: AECC1-AP tech-c: AECC1-AP notify: noc [at] aenccambodia.com mnt-by: MAINT-ANGKORENC-KH changed: noc [at] aenccambodia.com 20200629 #08:59:04Z source: RADB last-modified: 2023-11-13T16:01:09Z rpki-ov-state: valid route: 103.118.44.0/22 descr: Proxy-registered route object origin: AS137952 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 20220831 source: NTTCOM last-modified: 2022-08-31T13:06:57Z rpki-ov-state: valid route: 103.118.44.0/22 origin: AS137952 descr: ANGKOR E & C (CAMBODIA) Co.,Ltd. #99 Street 313 Sangkat Boeung Kak II Khan Toul Kok mnt-by: MAINT-ANGKORENC-KH last-modified: 2021-06-24T06:52:49Z source: APNIC rpki-ov-state: valid route: 103.118.44.0/24 origin: AS137952 descr: ANGKOR E & C (CAMBODIA) Co.,Ltd. admin-c: AECC1-AP tech-c: AECC1-AP notify: noc [at] aenccambodia.com mnt-by: MAINT-ANGKORENC-KH changed: noc [at] aenccambodia.com 20200629 #09:04:06Z source: RADB last-modified: 2023-11-13T16:01:09Z rpki-ov-state: valid route: 103.118.44.0/24 origin: AS137952 descr: ANGKOR E & C (CAMBODIA) Co.,Ltd. #99 Street 313 Sangkat Boeung Kak II Khan Toul Kok mnt-by: MAINT-ANGKORENC-KH last-modified: 2018-07-24T15:28:10Z source: APNIC rpki-ov-state: valid route: 103.118.45.0/24 origin: AS137952 descr: ANGKOR E & C (CAMBODIA) Co.,Ltd. #99 Street 313 Sangkat Boeung Kak II Khan Toul Kok mnt-by: MAINT-ANGKORENC-KH last-modified: 2018-07-24T15:28:29Z source: APNIC rpki-ov-state: valid route: 103.118.45.0/24 origin: AS137952 descr: ANGKOR E & C (CAMBODIA) Co.,Ltd. admin-c: AECC1-AP tech-c: AECC1-AP notify: noc [at] aenccambodia.com mnt-by: MAINT-ANGKORENC-KH changed: noc [at] aenccambodia.com 20200629 #09:10:54Z source: RADB last-modified: 2023-11-13T16:01:09Z rpki-ov-state: valid route: 103.118.46.0/24 origin: AS137952 descr: ANGKOR E & C (CAMBODIA) Co.,Ltd. admin-c: AECC1-AP tech-c: AECC1-AP notify: noc [at] aenccambodia.com mnt-by: MAINT-ANGKORENC-KH changed: noc [at] aenccambodia.com 20200629 #09:12:15Z source: RADB last-modified: 2023-11-13T16:01:09Z rpki-ov-state: valid route: 103.118.46.0/24 origin: AS137952 descr: ANGKOR E & C (CAMBODIA) Co.,Ltd. #99 Street 313 Sangkat Boeung Kak II Khan Toul Kok mnt-by: MAINT-ANGKORENC-KH last-modified: 2018-07-24T15:28:12Z source: APNIC rpki-ov-state: valid route: 103.118.47.0/24 origin: AS137952 descr: ANGKOR E & C (CAMBODIA) Co.,Ltd. #99 Street 313 Sangkat Boeung Kak II Khan Toul Kok mnt-by: MAINT-ANGKORENC-KH last-modified: 2018-07-24T15:28:13Z source: APNIC rpki-ov-state: valid route: 103.118.47.0/24 origin: AS137952 descr: ANGKOR E & C (CAMBODIA) Co.,Ltd. admin-c: AECC1-AP tech-c: AECC1-AP notify: noc [at] aenccambodia.com mnt-by: MAINT-ANGKORENC-KH changed: noc [at] aenccambodia.com 20200629 #09:13:28Z source: RADB last-modified: 2023-11-13T16:01:09Z rpki-ov-state: valid