These entries are queried from radb.net using whois, you can try my project getting these.
:AS23644 route: 203.151.18.0/24 origin: AS23644 descr: Internet Thailand Company Ltd. 1768 IFCT Tower, 10th-12th FL IT Floor New Petchburi Road Khwaeng Bang Kapi Khet Huay Khwang mnt-by: MAINT-TH-INET last-modified: 2020-11-19T08:19:19Z source: APNIC rpki-ov-state: valid route: 203.151.18.0/24 descr: GSBEX-TH origin: AS23644 mnt-by: MAINT-AS4618 changed: nidchan [at] inet.co.th 20180313 #01:08:45Z source: RADB last-modified: 2023-11-13T15:53:22Z rpki-ov-state: valid route: 203.155.238.0/24 origin: AS23644 descr: KSC Commercial Internet Co.Ltd. 2/4 Chubb Tower, 10th Floor Vibhavadee-Rangist Road Thungsonghong mnt-by: KSC-ADMIN last-modified: 2019-06-13T08:43:09Z source: APNIC rpki-ov-state: valid route: 203.155.238.0/24 descr: Proxy-registered route object origin: AS23644 notify: matthew.chan [at] hgc.com.hk mnt-by: MAINT-HGC-INTL changed: matthew.chan [at] hgc.com.hk 20200624 source: RADB last-modified: 2023-11-13T16:01:02Z rpki-ov-state: valid route: 203.155.238.0/24 descr: Proxy-registered route object origin: AS23644 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 20200624 source: NTTCOM rpki-ov-state: valid